Board Questions twice-bhoo_210328_210251_210328_211256
Biological width Pedo: 0-2mm normally; 0-4mm if next to an erupting permanent tooth or exfoliating primary tooth
How much for max NO: flow rate 4-6 L/min; in children, increase by 10% increments, maintenance is usually at 30%
Cleft Lip: 25%, 4-5 weeks in utero
o defect between medial nasal process and maxillary process
o unilateral 80%, bilateral 20%; 1:1000 births
Cleft palate: 25%, 6-8 weeks in utero
o lack of fusion between palatal shelves
o 1:2000 births
Ectodermal dysplasia: “heritable conditions in which there are abnormalities of two or more ectodermal structures such as the hair,
teeth, nails, sweat glands, cranial-facial structure, digits and other parts of the body.”
Congenitally missing teeth, peg shaped, or pointed, defective enamel
Also have frontal bossing, thin brittle hair/nails, light skin, cannot perspire cannot regulate body temperature
Bleeding: 1-3 minutes
PT: 10-13 seconds; extrinsic pathway
INR: 0.8-1.2; (INR=PTtest/PTnormal)
o in patients on anticoagulation therapy- 2.0-3.0
PTT: 25-29 seconds; intrinsic pathway
Platelet count: 150k-450k / µL
o Oral agents that alter/suppress platelet function include: aspirin, clopidogrel, cilostazol, ticlopidine, and prasugrel
Autograft – same person; from intraoral sites (maxillary tuberosity marrow, osseous coagulum, bone blend); also iliac bone
o uDFDBA – osteoconductive (outside cells penetrate scaffold and form new bone)
o DFDBA – osteogenic (contanes MMPs that induce formation of new bone)
Xenograft – BioOss – anorganic bovine-derived bone – osteoconductive
Hue – the color
Chroma – the purity/saturation of the color; high rich, low dull
Value – lightness or darkness of the color; light “tint”, dark “shade”Class III cavity in two proximal teeth: Drill: BIG to small; Fill: small to BIG
Local anesthetic in children: 4.4mg/kg = maximum recommended dose of anesthetic
kg X 4.4mg/kg = Xmg max
%anes x 10 x 1.8 = Xmg/cartridge
Xmg max / Xmg/cartridge = max # of cartridges
ANUG – caused by fusiform bacilli (spirochetes)
Painful, bleeding gingiva, blunted papillae, pseudomembrane, fetid breath, high fever
Tx: remove pseudomembrane, calculus, Abts if lymphadenopathy/fever, CHX; re-eval in 1-2 days (more debridement) then
in 5 days for another re-eval
Herpetic gingivostomatitis – within 3 days of onset: treat with Acyclovir 15mg/kg 5 times per day for 7 days
All patients: palliative care: plaque removal, systemic NSAIDS, and topical anesthetics
Contagious when vesicles are present
Ameloblastoma – adult, odontogenic, molar region, benign, aggressive, recurrent, external swelling
Mucus retnsion cysts – blockage of salivary duct by sialolith (salivary stone); blueish; on palate, Buccal
mucosa, upper lip
Called a ranula if on floor of mouth
Do not confuse with mucocele (mucous extravasion phenomenon) – nodule of saliva due to escape
from duct of salivary gland
Which gland (parotid, submandibular, or sublngual) is a sialoth most common
Which space is not involved in ludwig’s angina? (submental submandibular, retropharyngeal, or submental)
Irreversible hydrocolloid (alginate) – rapid set, pour immediately, not accurate (dx casts only)
Reversible hydrocolloid (agar) – hydrophilic, long working time, accurate, pour immediately; no custom tray but requires
special equipment, tears easily
Polysulfide polymer (for complete dentures) – high tear strength, smells, messy, good reproducibility, pour within 45
minutes; H2O is a byproduct contraction
Condensation silicone (?) – short setting time, pour immediately; EtOH is a byproduct dimensional contraction; base+acc
Addition silicone (VPS) – no byproducts dimensional stability, low tear strength, fewer voids when poured immediately
Polyether (Impregum) – base and accelerator; no byproducts excellent dimensional stability; pour soon
Malleability – deform (without fracture) under compressive strength; ability to form a thin sheet; gold is malleable
Greatest malleability to least: gold, silver, lead, copper, aluminium, tin, platinum, zinc, iron, and nickel
Ductilty – deform (without fracture) under tensile strength; ability to stretch into wire
greatest ductility to least: gold, silver, platinum, iron,nickel, copper, aluminium, zinc, tin, and lead.
Gold inlay/onlay – divergent walls (2-5 degrees per wall), 30 degree bevel margins for better fit, skirt – extend beyond line angle
class I – bilateral edentulous area posterior to remaining teeth
class II – unilateral edentulous area posterior to remaining teeth
class III – unilateral edentulous area with natural teeth anterior and posterior
class IV – single bilateral edentulous area with natural teeth remaining on both sides
Major connector – connect all rpd components on one side to those on other side
Minor connector – stabilization
Rest – support
Clasp arms – stabilization (middle 1/3) and retention (gingival 1/3)Epidemiology definitions
Incidence – measure of the risk of developing some new condition within a specified period of time
Prevelance – measure of the total number of cases of disease in a population
Sensitivy – measures the proportion of actual positives which are correctly identified as such
Specificity – proportion of negatives which are correctly identified (e.g. the percentage of healthy people who are correctly
identified as not having the condition).
Lymphoid epithelial cyst – odontogenic origin
Cemetoblastoma – RO mass that replaces root; tooth is removed with lesion
Periapical Cemento-Osseous dysplasia – vital, lower anteriors, middle age women, RL then RO; no symptoms
Florid Osseous dysplasia involves entire jaw
Pt with inlay has pain during biting..no radiographic evidence m-d cusp fracture poor prognosis
o M-D fracture can’t be seen radiographically because the fracture line is not in the plane of occlusion
Cracked tooth with more symptom to—cold,heat,pressure (hard to reproduce), sweets, acidic foods also
o Commonly lower first molar
o Dx: stain, transillumination, tooth slooth, air to detect where pain from crack occurs
healthy/reversible splint/observe or crown (temporary then permanent);
irreversible/necrosis endo, core (no post if possible, crown
Most common area of fracture in children: symphysis, condyle, coronoid
Apical root closes in about 3 years from eruption
o Eruption occurs through gingiva with ¾ root completion
o From calcification to root completion: 10 years (canine 13 years)
Tooth with most favorable prognosis—small internal resorption
Esthetic analysis, face divided:
o Vertically by 5 (4 planes)
o Horizontally – 3 (2 planes)
o Frankfort horizontal line – porion to orbitale
o Camper’s line – occlusal rim parallel to ala tragus line
Sterilization – must kill spores of spore-forming bacteria (Bacillus and Clostridium)
o Bacillus spores are the benchmark organism for sterilization
o most destructive to carbide instruments—-steam heat 250 degrees for 15-20 minutes; denaturation
o dry heat does not Corrode or dull instruments; only glass and metal; 320 degrees for 1-2 hrs
o cold sterilization – soak in chemical then rinse in sterile water; 10 hrs to kill spores with 2% glutaraldehyde
Disinfection – antimicrobial kills or stops growth of pathogens; applies to inanimate objects
o Mycobacterium tuberculosis is the the benchmark organism for disinfectants; spores are not killed
o Something about disinfecting a surface, I think you leave it for 10 minutes then wipe
Antisepsis – applied to living tissue; alcohol
Orange stain is important —to change chroma
o Most common staining on porcelain Which endodontic procedure is most unsuccessful in primary tooth with deep caries? Direct pulp capping may cause
internal root resorption
Resorption of bone takes place in which direction after extraction—-downward inward
o Other choices: downward outward, forward inward
Which procedure least likely to produce bacteremia–extraction, non surgical endo, oral prophylaxis
Which gracey curet is used for the mesial surface of distal root in max tooth—11-12, 13-14
Which determine energy level of photon in xray—kvp,ma
o Exposure – Roentgen
o Absorbed dose – Gy
o Effective dose – Sv
o Radioactivity Bq
Which structure is most radiosensitve—-hemopoitic bone marrow , also oral mucous membrane
o Cells that are mitotically active and undifferentiated and have long mitotic futures
Reversal occlusal plane—chin tilted too upward
Which is most important for diagnosis of maxillary sinus xray—-occlusal,panaromic,MRI
Effect of xray—genetic mutations
Collimation – reduce SIZE of x-ray beam reduce volume of irradiated patient tissue
o Circle 7cm in diameter
Tranillumination method is most useful in carious diagnosis —anterior proximal, posterior proxmal
15% Aluminium chloride isHEMODENT most commonly used; contains no epinephrine
o USE OF ZINC CHLORIDE IS NOT RECOMMENDED necrosis
o Epinephrine is not used due risk of increasing BP in hypertensive pts
o Why do you keep sulcus dry when placing cord?
Porcelein laminate veneer fixed by resin show black margin in 2 days cause—porcelein break,resin wears off??? Amine?as
Ultrasonic Instruments: active portion is the tip, 20-45k cycles/seconds
o Magnetostrictive elliptical vibration pattern, all sides of tip are active
o Piezoelectric linear vibration pattern, 2 sides are more active
o CONTRAINDICATED in patients with Pacemaker, communicable diseases, titanium implants (use plastic tip)
o Something about what determines the effectiveness of the ultrasonic instrument. Something about the tip
Troches available fungal agent—clotimazole for treating oral Candidiasis; also Nystatin
Which is not an antifungal? Options were ketoconazole, Nystatin, Clotrimazole, and something else
U shaped radiolucency in max molar—zygomatic process
J shape radiolucency – vertical root fracture
Pt says “I dont have time to stop smoking” contemplatory, precontemplatory, denial,action
Elderly people abuse question –under reported
Adult child can decide a treatment plan of his old patient his parent in what suitation—when he is payig money,when he is
impaired either ear or eye,patient want his decision has power of attorny Dentist does the treatment for 2 crowns but the insurance company pays the money for one crown downcoding.
o The alteration by an insurer or other third-party payer of service codes for physicians or other health care
providers, to those of lesser complexity, resulting in decreased reimbursement
o Q was either about downcoding or upcoding, know both
which area is most difficult to achieve matrix adaptation max mesial 1 prem also common place for perforation
Which impression material has good wettability—Hydrocolloid > Polyether > Hydrophilic Addition Sillicone > Polysulfide >
o Hydrophobic addition silicone and condensation silicone has same wettability
uses of chlorhexide–reduce plaque accumulation
o Cross sectional: Sample of people assessed at one time
o Case control: people with (cases) are compared to people without (control), but are otherwise similar
May establish exposure-disease relationship
o Prospective cohort: follow group over time; describe prevalence of outcomes in the group
o Retrospective cohort: choose a group that HAD the outcome of interest
evaluate effect that an exposure had on a population (ex occupational hazards)
o Double blind clinical trial: neither subject nor investigator knows which group is control or case
Used to compare incidence and side effects
o Community trial: community as a whole is studied; the more similar the communities, the more valid the results
Ex. Fluoridation trial of 1945 (fluoridated community vs non-fluoridated)
Pt has composite restoration with severe pain with localized swelling—- Incision & Drainage
Action of sodium hypochlorite disinfection of root canals, dissolves organic matter; DOES NOT REMOVE SMEAR LAYER
Most crucial in replantation—-time managment
Ectopic eruption of man 1st molar in relation to pri man 2nd molar cause some resorption -management—extraction of 2nd
molar,separation, disking of 2nd molar
Calcification of premolar tooth at birth—-NO
Patient with 12 primary and 12
permanent teeth teeth—81/2 years
o Primary: U/L 3,4,5s;
Permanent U/L 1,2,6s
o Eruption of what teeth at 11
Mouth breathers have facial feature
of incompetent lips, convex profile,
narrow palatal vault, bilateral cross
Most common cause of frequent
urination during 3 trimestor–pressure
of uterus on bladder,gestatory
Facial profile of class 2 malocclusion—
convex, Class III is concave Normal biological width 2mm (0.97 mm JE, 1.07 mm CTA) + sulcus
o Biologic width is the distance established by “the junctional epithelium and connective tissue attachment to the
root surface” of a tooth. This distance is important to consider when fabricating dental restorations, because they
must respect the natural architecture of the gingival attachment if harmful consequences are to be avoided.
Acid etching show decalcification at the area but did give the appearance of frosty why more fluoride in tooth, therefore
you have to etch longer or again. MUST HAVE FROSTY APPEARANCE
Beveling in acid etching composite use more surface area. Exposes the enamel rods obliquely
o Something about which is not a reason to bevel; the answer will be obvious
Distobuccal flange of denture determined by—masseter
Removing the mylohoid ridge have the common error in–lingual nerve damage
Cheek bit due to—horizontal overlap (edge-to-edge), or too far buccal or lingual
if it is mandibular facial placement of teeth, then it is the option.
Ant flange in max teeth—esthetics
Facebow transfer for recording—max with hinge axis positioning
Post op managment after denture delivery pt has pain in crest of the ridge—defect in post occlusion (or whatever area)
o Excessive VD, bubble in acrylic, inaccurate denture base,
Placement of rubber dam affect the colour selection by dehydration of tooth gives inaccurate tooth shade
Know about the tooth reduction for various materials
Tooth set in 20 degree for balanced occlusion…but adjusted to 45 degree what is need to corrected for balanced occlusion–
DNA probing in perio pocket –for bacterial specific
Tooth with endo treated and post with crown have pain after several days esp during biting and cold..vertical root fracture
Use of indium with alloy is mainly to provide chemical bond with porcelain
Classification of pontic mainly depend on their relationship —to the ridge (mucosal or nonmucosal)
o Mucosal: concave and passively contact the ridge
Saddle Ridge lap NOT USED because it forms a concave area B-L that is uncleasable
Modified ridge lap very esthetic, moderately easy to clean, for PFM, all-metal, or all-ceramic
Ovate very high esthetics, good for high smile line, easy to clean, requires surgical preparation
Conical Molars without esthetic requirement, easy to clean
o Nonmucosal – used in nonesthetic areas
Sanitary (hygienic) about 2mm from mucosa, all metal pontic
Modified sanitary (hygienic)
Know about pier abutment and cantilever
o Cantilever teeth with RCT are not preferred for cantilever abutment; should have more than sufficient bone
o Pier Abutment single tooth with two edentulous spaces on either side. In this case the single tooth will have to
act as an abutment for both the edentulous spaces in the bridge. In order to prevent trauma to the abutment a
stress breaker is provided with in this sort of Dental Bridges near the pier abutment. The stress breaker is a nonrigid connector with a key in key-way. If the pier abutment is mobile then a rigid connector should be used instead
of non-rigid connector.o Q about which abutment/cantilever system will have the most traumatic effect on the abutment. Choices were
“molar abutment, premolar pontic”, “max lateral abutment, max central pontic”, “max central abutment, max
lateral pontic”, and “max canine abutment, lateral pontic.” (I think)
Physiological rest position
Why do the patient’s teeth click when they wear dentures
Working side and non working side interfence
Bennett shift mainly on –lateral movement of condyle or working side
o Aka Immediate side shift The bodily lateral movement of the mandible towards the working side during lateral
excursions (approx. 0.3mm)
Narcotics mainly contraindicated in —MOA inhibitor
Severe alcoholic now recovering need 24 tooth extraction which test needed—-INR CBC
Property of interocclusal recording material—-low resistance to jaw closure
What is the disadvantage of using elastomer for jaw relations or CR (something like that). Like what will happen when you
try to mount?
Incisal guidance mainly depend on —hori and verti overlap
Occlusal trauma symptoms – fremitus is the best test to test TFO, vascular – blood clots in PDL, gingival recession, widening
Erythema in the palate of the patient wearing denture…inflammatory papillary hyperplasia
o Poor hygiene, ill-fitting dentures, denture overuse
After having denture (partial) the pt have pressure for few days, later it subsides—occlusal
trauma, pressure of clasp, pulp damage
Which doesnt need replacement or repair–recurrent carious at margin,pulpoaxial line fracture, ditched restoration
Pt has restoration shows demarcation b/w restoration, which is fracture in middle of restoration. Whats the next step—
look for further fracture line, replacement of restoration…?
Sensitivity following composite restoration in post most comman cause—due to resin,polymerization shrinkage in
Without indirect retainer—outward displacement of distal extension base
Flexiblity of alloy depend on all expect—-composition, taper, undercut (ans)
Epithilium of free ging graft—-degenerate
Distractive osteogenesis vs. osteotomy
o distractive osteogenesis is a surgical process used to reconstruct skeletal deformities and lengthen the long bones
of the body.
o An osteotomy is a surgical operation whereby a bone is cut to shorten, lengthen, or change its alignment
Bacteria in healthy mouth—facultative gram positive anerobic bacteria Which of the following is not true about local agressive periodontitis—-affect less than 30%, treatment scaling and systemic
Disease with Desquamative gingivitis
o lichen planus, mucous membrane pemphigoid, and pemphigus
A band of red atrophic or eroded mucosa affecting the attached gingiva is
known as dequamative gingivitis. Unlike plaque-induced inflammation it is a
dusky red colour and extends beyond the marginal gingiva, often to the full
width of the attached gingiva and sometimes onto the alveolar mucosa
Lateral perio cyst common location—bicuspid lower
Primary reason for replacing an overhang restoration—interfere in plaque removal
Which one is common in pregnancy and in normal condition–pyogenic granuloma
Best longterm care after perio treatment—self,professional..???
Which type of interleukin in most common after perio disease—IL-1
If implant with width of 4mm is used what should be the bucolingual width of the ridge? 6mm
o minimum Vertical height of bone to place implant – 8mm
o minimum Width of bone is 6mm choices were 5mm, 7mm, 8mm, 12
o minimum distance of apex of implant From nerve – 2mm
o platform of implant from adjacent CEJ – 2-3 mm
o between implants 3mm
o between implant and tooth (height of coutour) is 1mm
o Mini implant is 2.4mm
o When there is FPD from natural tooth to implant, the max stress is concentrated on the SUPERIOR PORTION OF
o Retention: Direct retainer , and indirect retainer
o Stability: Minor connectors, proximal, ligualul plate, denture base
o Support: Rest, major connectors, denture base
H2O2 – less than 10% OTC
o H2O2 – 30% (superoxol) used in in-office bleaching
o Carbamide peroxide – 15-18% tray bleaching (commercially available in syringes)
Most acceptable root sensitive theory—hydrodynamic
o the flow of fluid in dentinal tubules trigger receptors within the tooth
Re-evalution after perio therapy—4-6wks
Pt with diabetes having sedation IV and LA—ask the pt to take high calorie food with insulin, low calorie food which
Mucosal graft epithelization by—connec tissue from underlying tissue(recipient site) Lefort I associated with- what fracture–nasoethmoidal air cell, frontal sinus, max sinus, mastoid air cell
o Le Fort II – separation of the maxilla, attached nasal complex from the orbital and zygomatic fractures
o Le Fort III – Nasoethmoidal complex, the zygomas, and the maxilla from the cranial base which results in
Treatment of mid face deficiency is 1) lefort I 2) lefort II 3) lefort III
Apexogenesis vs. Apexification (know when to do either)
o Apexogenesis: vital pulp therapy for immature tooth with incomplete root,
damaged coronal pulp but health radicular pulp
Allows continued development of the entire root
Encourages body to make a stronger root and eventually root closure
o Apexification: nonvital tooth
Stimulates formation of calcified tissue at the open apex of pulpless teeth
Create proper environment for formation of the calcified barrier by cleaning and removing debris/pulp
and place material (calcium hydroxide) to induce apical closure
Symptoms of Sjogren immune cells attack and destroy exocrine glands
o Sicca symptoms: Xerostomia, xerophthalmia, general dryness, arthritis, lymphoma
Acute gingivostomatis virus associate with—chicken pox virus also
Acylovir—in some viral infection
Most common cause of failure of in restoration in primary tooth—cavity prep,moisture contamination…
Fusion—two tooth join only by dentin
While giving inf inferior alveolar injection the pathway from?contra lateral premol,contra canine,contra molar,ipisi lat
How to split the tooth using bur tech of tooth removal—spilt buccal and lingual up to furcation
Constantly exposing the pt to get from the fear factor is—desensitation
Fear decreases pain and anxiety increases pain
Most common site of herpes–attached gingiva
Scopolamine commonly used for motion sickness
o Anticholenergic drug he drug is used in eye drops to induce mydriasis (pupillary dilation)
Prostaglandin inhibitor cause all except—increase gastric mucous.
o PG:decrease gastric acid and increase gastric mucous, inc blood flow in kidneys
Unconsicous most commonly—psychogenic
Asthmatic patient, NSAID contraindications: NSAIDS cause bronchospasm.
longterm asthma give corticosteroid
Pt with osteoradionecrosis often have 4-5gy of radiation therapy
Pt with bisphosphanate 3ml IV for 3 yrs, have carious and unrestorable tooth; management: stop regmen 1 mnth extract,
do non invasive endo treatmnt.
o bisphosphonate has half life of 6 months, it is advisable to wait for atleast 6 months before invasive procedures
Most common side effect of N2O2—nausea and vomitting
Laryngeal obstruction in—anaphylatic shock Steriod supplement indicated in pt with—10mg with 1 yr, 10 in 2yr
Erosive crust in skin with target—-erythema multiforme
Diazepam action in GABA both relaxing, anti-anxiety and anti-convulsive effects
Common malignant potential—Paget’s
o Lion-like facial deformity.
o Teeth demonstrate extensive hypercementosis.
o Development of malignant bone tumor
usually an osteosarcoma is recognized complication of Paget,
frequency of osteosarcoma is 1%, mostly long bone
Absence of primary tooth—premant eruption slow
Visible light curing – 400 – 499nm
Advantage of gold on occlusal surface, porcelain in facial surface—-conserve tooth struc,minimal rsduction…????
Why do you bevel the functional cusp for a full coverage crown?
Interaction of proponolol (B-blocker) with epinephrine is best described by synergism
o Increases the effects of epi so risk for Hypertension and bradycardia
o Better to use a selective B1 blocker such as metoprolol
Drug most likely cause xerostomia—lithium (antipsychotic), ca channel blockers (like nefidipine), and anticonvulsants.
Pt have swelling after extraction, he is under penicillin therapy. What would be the next drug of choice? Clindamycin
Beta lactamase—inhibit the action of penicillin
o Methacillin (rarely used), Flucloxacillin, Oxacillin, Dicloxacillin are resistant to beta latamase
Both drug have same intrinsic effect and different receptor affinity—same potency, same efficacy
Pt is addicted to oxycodone (opiod) which contraindicated codiene(opiod), pentozocaine
Antipsychotic with irreversible side effect—-Tardive dyskinesia —Sudden purposesless movement(parkinson like disease)
Large radioopaque lesion in carious affected tooth—condensing ostitis
Pierre Robin Syndrome:
o glossoptosis, retrognathia, upper airway obstruction, and cleft lip or palate
o Child will have difficulty breathing and feeding
o downward slanting eyes
o micrognathia (a small lower jaw)
o conductive hearing loss
o underdeveloped zygoma
o drooping part of the lateral lower eyelids
o malformed or absent ears.
Granulomatous lesion—crohn’s disease
o Also Wegener’s syndrome, TB, Histoplasmosis, Sarcoidosis, Cat-scratch disease… Patient with labial lesion for 7 days, similar kind for lesion wk before—recurrent apthous
o Actinomycoses isrealii is normally found in nose and throat Symptoms occur when the bacteria enters the facial
tissues after trauma, surgery, or infection.
o A common triggering causes is dental abscess or oral surgery
o Once in the tissue, it forms an abscess, producing a hard, red to reddish-purple lump, often on the jaw, from which
comes the condition’s common name, “lumpy jaw.”
o Eventually, the abscess breaks through the skin surface to produce a draining sinus tract.
o Find Actinomyces and sulfur granules in drained fluid
o Etiology of Hypercementosis can be caused by many things. “PIG ON TAP”:
Pagets, Ideopathic, Gigantism
Occusal Trauma, Non functional tooth
Trauma, Acromeglia, Periapical granuloma
Localization of mesiodens is done with occlusal radiograph
Neuropraxia: It is a transient episode of motor paralysis with little or no sensory or autonomic dysfunction
o Neurapraxia describes nerve damage in which there is no disruption of the nerve or its sheath
St John’s wort is most widely known as an herbal treatment for depression (300mg of extract)
o may work against gram negative bacteria, ADHD
Pt is a child and is diabetic undergoes hypoglycemia in the chair if conscious give him orange juice
o If unconscious give him 50% dextrose IV
o Type I Diabetes leads to a) Aphasia b) Ataxia c) Blindness d) Deafness
Amantidine is used as Antiviral for Influenza A
o Also for Parkinson’s (may promote dopamind release in substantia nigra)
Strawberry tongue seen in scarlet fever
o Also in Kawasaki disease and toxic shock syndrome
o for pacemaker – no premedication required
o for Prosthetics heart valves – premedication required
LA calculations 4.4mg/kg
o One carpule of 2% xylocaine has 36mg
Primate spaces are seen between maxillary Lateral incisors and canines; mandibular canines and molar
Which of the following Medication is not by cell wall synthesis?
o Penicillin B) Amoxicillin 3)Vancomycin 4)Azithromycin – inhibits protein synthesis
o Protein Synthesis
CLEAN(50s):Clindamycin, lincomycin, erythromycin, azithromycin, chloramphenicol, clarithromycin
TAGS(30s): tetracycline, aminoglycosides, gentamycin, streptomycin
Questions on public health case studies
o Prospective cohort studies: A prospective cohort study is a research effort that follows over time groups of
individuals who are similar in some respects (e.g., all are working adults) but differ on certain other characteristics
(e.g., some smoke and others do not) and compares them for a particular outcome (e.g., lung cancer). It should
be emphasized that prospective studies begin with a sample whose members are free of the disease or disorder
under study (e.g., free of lung cancer or free of major depression).
o Retrospective cohort studies: A retrospective cohort study, also called a historic cohort study, is a medical
research study in which the medical records of groups of individuals who are alike in many ways but differ by a certain characteristic (for example, female nurses who smoke and those who do not smoke) are compared for a
particular outcome (such as lung cancer).
A retrospective (historic) cohort study is different from a prospective cohort study in the manner in which
it is conducted. In case of Retrospective Cohort Study, the investigator basically collects data from past
records and does not follow patients up as is the case with a prospective study. However, the starting
point of this study is the same as for all Cohort studies. The first objective is still to establish two groups –
Exposed versus Nonexposed; and these groups are followed up in the ensuing time period.
o Case-control is a type of epidemiological study design. Case-control studies are used to identify factors that may
contribute to a medical condition by comparing subjects who have that condition (the ‘cases’) with patients who
do not have the condition but are otherwise similar (the ‘controls’).
What liquids used in Glass Ionomer Cement – Polyacrylic Acid
o In most of the current cements, the acid is in the form of co-polymer with itaconic, maleic or tricarboxylic acids.
These acids tend to increase the reactivity of the liquid, decrease the viscosity and reduce the tendency for
o Focal spot influences resolution
o Collimation influences penetration
o Milliampere influences intensity
o KVP influences energy and pentration
A pt is taking methotrexate (immunosuppressant) will have drug interaction with
o Beta blockers B) Alpha blockers C) NSAID’s D) Beta lactamase
o *Never use with Acitretin or Asparaginase (absolutely contraindicated!)
o With methorexate we cannot give amoxillin because it decreases renal clearance
o Odontogenic cyst is periapical cyst (non-vital tooth)
o odotogenic ectodermal is ameloblastoma
o odontogenic mesenchymal is fibroma
o non-odontogenic cyst of the oral cavity is the nasopalatine duct cyst
o salivary gland tumor is pleomorphic adenoma
Recommended daily intake of fat Intake as per USDA is 30% of total daily caloric intake or 10% saturated fat intake of
American Society of Anesthesiology patient classification status
o ASA I: Normal healthy Pt
o ASA II: No functional limitations; has a well-controlled disease of one body system; controlled hypertension or
diabetes without systemic effects, cigarette smoking without chronic obstructive pulmonary disease (COPD); mild
o ASA III : Some functional limitation; has a controlled disease of more than one body system or one major system;
no immediate danger of death; controlled congestive heart failure (CHF), stable angina, old heart attack, poorly
controlled hypertension, morbid obesity, chronic renal failure; bronchospastic disease with intermittent
o ASA IV : Has at least one severe disease that is poorly controlled or at end stage; possible risk of death; unstable
angina, symptomatic COPD, symptomatic CHF, hepatorenal failure
o ASA V : Unstable moribund Pt who is not expected to survive 24 hours with or without the operation
o ASA VI : Brain-dead Pt whose organs are removed for donation to another
Recurrent apthous ulcer
Thyroglossal cyst Location of Inferior Alveolar Nerve – They then pierce the buccinator muscle between the palatoglossal & palatopharangeal
folds, lying lateral to the medial pterygoid at the mandibular foramen.
Syphilis Chancre resembles 1) Cancer 2) Herpes 3)Herpangina 4) Apthous Ulcer
o Most common odontogenic tumor of mesenchymal origin
o Post Mand
o Honeycomb & multilocular appearance
o Rx: similar to ameloblastoma & Giant cell Granuloma
o Tx: Curettage, possible recurrence
o Most common EPITHELIAL ODONTOGENIC TUMOR…mand molar area
o Age 40’s 50’s
o Histo: reverse polarity
Ameloblastic fibroma: compared to ameloblastoma
o younger age
o slower growth
o does not infiltrate
o similar to the above except it occurs in the MAXILLA AND MANDIBLE in equal freq
o same as above except it occurs in max & mand pre-molar & molar area
All of the following applies to oral cancer except
o 1)Male 2) Smoking 3)African American 4)Low socio economy 5)sex predilection for location
Which of the following will not occur in over contouring of crown is
o A)Gingival problems 2)caries on the adjacent tooth 3) bone loss
Which of the following will incur more force on opposing dentition?
o complete denture b) tooth borne partial c) tissue born partials
d) over dentures
enamel pearls most commonly seen on maxillary Molars
gingival palatal groove most like seen on seen in Max laterals
Anatomy on maxillary central that aids in plaque retention cingulum
o mean energy of Xray photons is increased by increasing KVP
o collimation makes the X ray photon decrease the radiation to
Fogging of film is in overdevelopment, contaminated sols, deteriorated
films and light leaks
more Kvp – less contrast for restorative purposes
Dark radiographs – Overdevelopment, excessive mA,
excessive peak kilovoltage, film-source distance too short. Osteoradionecrosis occurs because of decrease in vascular supply
o Traditionally 1-2 wks btw TE and radiotherapy is suggested. however is better to delay radiotherapy 3 wks after TE.
o After Radiotherapy if tooth has necrotic pulp
o endodontic Tx with systemic antibiotics can be performed
o if difficult to do RCT (because of sclerotic pulp)>>>tooth can be amputated above the gingiva and left in place
Pt is on IV bisphosphonates which of the following procedures can be done
o 1)Scaling and Prophy 2)endodontics 3) surgery 4) extractions
Crouzon’s syndrome exhibits severe proptosis (exapthalmous)
o seen in Crouzon’s syndrome: hypertelorism, underdeveloped maxilla, brachycephaly
Which endocrine system does thick hair become thin hair thyroid – hypothyroidism
o (cretinism in kids and myxoedema in adults)
Extrusion of canine what flap technique is used except 1)Envelope flap 2) Semilunar flap 3) Apical repositioning flap
Know about flaps (incisions etc)
Collagen disorder seen in advanced Diabetes and Rheumatoid Arthritis
Mechanism of action of substances on GABA receptors
o increasing the frequency of chloride channels by Benzodiazepines
o Barbiturates increase the duration of chloride channel opening
Neurotransmitter in Parkinson’s disease is Dopamine
Pt has Asthma and is allergic to Aspirin what pain medicaction will be given?
o Acetamenophen 2) Ibuprofen 3) Diclofenac Sodium
o NSAIDS – are contraindicated in asthma pts.
When you place a implant, widening of crestal bone is seen because of which force?
o Horizontal 2) Oblique 3) Vertical 4) Aapical
o Fibers on implant
What is the reason for unhappiness of denture Instability of the lower denture
Mode of action of miconazole – alters the cellular wall permeability.
o It works by inhibiting the synthesis of ergosterol, a critical component of fungal cell membranes.
Cause of indiscrete margins on xray film
Antibiotic contraindicated with ALCOHOL are Metronidazole, Tinidazole, Antimalarial, flurazolione, Griseofulvin
o headache, nausea, vomiting, irregular heart beat, tachycardia, flushing, breathlessness, low BP
In a # of rt side of body of mandible, which other # is to be suspected – condyle on the contralateral side of the subcondylar
o Trauma to one side often produces an ipsilateral body fracture and a contralateral subcondylar fracture.
o A heavy blow to the symphysis produces a symphyseal fracture and bilateral subcondylar fractures.
o It is also important to exclude damage to the cervical spine and to ascertain that the airway is not compromised.
In condylar hyperplasia, mandible deviates to which side? to the contralateral side (the unaffected side),
in condylar hypoplasia the mandible deviates to the affected side
Treatment of ranula (floor of mouth): a) marsupialisation b) enucleation c) inj steroid; Treatment of a mucocele
enucleation Pt complains of high fees of dentist, how should the dentist answer? Fee is fine according to the geographic area, it is fair
and reasonable, I have to make a living too
Handling of an ADHD pt and how to get them to maintain oral hygiene – no modifications
Working side interferences? Max: palatal inclines of buccal cusps, Mand: buccal incline of lingual cusps
o In MIP or CO, Max: buccal incline of palatal cusp, Mand: lingual incline of buccal cusp
o Balanced side interferences are Max: buccal incline of palatal cusps and Mand: lingual incline of buccal cusps
Protection for inf alv nerve while placing an implant : surgically move the nerve, meticulous placement of the implant, place
Action of chlorhexidine? membrane disruption
o Antiseptic and antimicrobial with bacteriocidal activity
Denaturation of the proteins – alcohol and autoclave; Coagulation of proteins – dry heat
Source of epithelium for graft: host, graft, adjacent tissue. Source of the blood supply is the host connective tissue
Disadvantage of hydroxyapatite graft – control of granules is hard and in the region of lower bicuspds, graft might be solidify
over the mental foramen and cause parasthesia.
After flap surgery, how does repair occur? Pdl moves occlusally, apically, laterally
Upon using the fluorescent light, in which of the conditions is the complete tooth illuminated: vertical fracture, periapical
abscess, split tooth?
Color of nitrous oxide cylinder – blue
o oxygen cylinder is green
Which does not describe a biohazard waste box: made of metal, closed, puncture proof, leak proof
Some law on hazard communication law. What is it and what organization created?
Pt swallows a crown, what position should you place them in
For a pt with head and neck cancer who is to be irradiated, when should be questionable teeth removed: before irradiation,
Treatment for lingually erupted #9 at age 7 – no tx
Mandibular incisors erupt in what position to the primary teeth? Buccal to, lingual to, straight under…
Advantage of bundling instruments before sterilization – precleaning in ultrasonic?
What happens if penicillin and erythromycin are given together: summation, potentiation, idiosyncrasy
Tetracycline cancels out Penicillin
Numbers of surgical forceps for tooth extraction 150 = upper, 151 = lower;
What forceps would you use to extract mandibular premolar? Choices were like 150, 151, 23, 71…
Angulation of cutting edge to the tooth surface while root planning more than 45 less than 90
After using a gingival retraction cord, tissue reacts by recession. Where do you see this the most; lingual, buccal,
Which aspect most commonly needs convincing for the pt with new CD: speech, chewing, max denture retention, mand
Which of the following is absent in facial palsy: drooling, inability to wink, loss of muscle tone, excessive salivation
o May be caused by Herpes Zoster, Sarcoidosis, middle ear infection, Lyme disease, HIV infection
o May also experience: dry mouth and dry eye, headache, loss of taste, hearing louder in one ear Consequences of tooth ext in a pt with adrenaline crisis – probably delayed healing, infection, inflammation, LoC, dizziness,
o If Pt uses more than 10 mg prednisone daily then: double the dose of daily steroids at the day of surgery as well as
double the dose the day after surgery. (always after consultation with MD
Contraindications for the use of opiates – cannot be used with MOA inhibitors, incase of head injury
Bacteria that is responsible for progression of caries but not causing the initial phase – Lactobacillus
Patient presents with eroded occlusal surface, lingual surface of max teeth, fillings raised from the surface. What should be
suspected – possible GI regurgitation
Radiographic feature of osteoporosis
o Osteoporosis results in an overall reduction in the density of bone.
o This reduction may be observed in the jaws by using the unaltered density of teeth as a
o There may be evidence of a reduced density and thinning of cortical boundaries such as
the inferior mandibular cortex
The caries rate in patients with Downs Syndrome is less.
o The patients with DS had a significantly lower prevalence of caries and significantly higher levels of salivary sIgA in
this study. This finding tends to support the hypothesis that higher levels of salivary sIgA may protect against
o But periodontal disease is more
Cleft lip and palate is usually associated with which kind of malocclusion? class III
Purpose of dietary analysis of pt -Caries risk assessment
Cause of dry socket (alveolar osteitis) : fibrinolysis of clot, physical dislodgement of clot?
o How do you treat it? (make sure you recognize dry socket as “alveolar osteitis”
o Multiple types of alveolar osteitis can result from disturbances in the healing process. The type that is commonly
referred to as dry socket is one in which the disturbance is from the time a blood clot forms immediately after
tooth extraction to the initiation of healing in the 4-5 day period after extraction occurs.
o The healing tissue that is supposed to replace the blood clot, known as granulation tissue, may fail to grow or be
disrupted after beginning to grow, leading to the well known symptoms of dry socket.
Which of the following is a dentist not supposed to do: talk about options provided by other specialist, risks of not having tx
done, benefits of having treatment done, discuss about copay
Note:If you see a fact e.g broken file,or tooth perforation you have to inform the Pt but not blame the previous dentist
Onset of action of antipsychotic is 5-6 days
Child with blue lips, thickened nail beds, pale skin. What disease is to be suspected?
Congenital Cyanotic heart disease
Muscle that decides posterior extension of lingual side of dental flange? Mylohyoid,
superior pharyngeal constrictor?
Define chief complaint – it should be in pt’s own words
Oral hygiene instructions for ADHD pt: hygienist to pt, hygienist to pt and parents, dentist to pt, printed material All of the following can be used for plaque removal
except: water irrigation, tooth picks, toothbrushing,
floss What is water irrigation used for?
Tooth brushing technique best suited for removal of
interproximal plaque-Modified Charters
Where does interproximal caries generally occur:
above contact area, below contact area, at contact
area, area between marginal ridge and contact area?
What does wheezing sound like?
o gasp followed by high-pitched whistling
Pregnant woman goes into syncope in second trimester. What should be the immediate action?
o turn her to the left in order to remove the pressure from inf. vena cava
Epidemiology of oral disease
o Diabetes is common on which race? black men
o Periodontitis is common for which race? Black
o What group has the highest prevalence of coronal caries? Blacks, Whites, Native Americans , Hispanics.
Prevalence of caries in permanent teeth (DMFT) adults 20 to 64 years of age, White >Black>Hispanic
Prevalence of untreated decay in permanent teeth.. Black >Hispanic> White
Mean number of decayed, filled, and decayed or filled permanent teeth among adults 20 to 64 years of
age – White>Hispanic>Black
Prevalence of Class II more in WHITES, Class III in Blacks
Class III malocclusion with cleft lip and palate is more in Native Americans > Oriental, Caucasians > Blacks.
Cleft lip is more common in Asians
Use of pulp testing: check disease or health or extension of damage of pulp, check the responsiveness of pulp nerves.
How does a tooth covered with crown react to pulp testing— cold is better test
Night guard is used for: treating bruxism, redistribute occlusal forces
Should be able to identify defect in hue, color, chroma on a photograph.
Displacement of fractured segments of mandinble by the action of associated
muscles. If the # is at symphysis the muscles are genioglossus and anterior digastric.
Pt is addicted to oxycodone which contra indi- Patients receiving CNS depressants such
as other opioid analgesics, general anesthetics, phenothiazines, other tranquilizers,
centrally-acting anti-emetics, sedative-hypnotics or other CNS depressants (including
alcohol) concomitantly with PERCOCET tablets may exhibit an additive CNS depression.
o When such combined therapy is contemplated, the dose of one or both agents
should be reduced.
o The concurrent use of anticholinergics with opioids may produce paralytic ileus.
Bioavailability—amount of drug avilable in systemic circulation
Question about effect of a drug that has high first-pass metabolism
o This first pass through the liver thus greatly reduces the bioavailability of the
Antipsychotic with irreversible side effect—-tardive dyskinesia (2Q)
Lantaprost indication—- Xalatan® (latanoprost ophthalmic) – eyedrops for glaucoma
o Reduces intraocular pressure
o Prostaglandin analogue Common site for granular cell myoblastoma (granular cell tumor)—tongue
Large radioopaque lesion in carious affected tooth—condensing osteitis
Lesion commonly with dysplasia and carcinoma in situ—erythroplakia
Common finding in patient with ataxic cerebral palsy—ant tooth fracture
Common reason for angular chelitis—decreased vertical dimension (in elderly), skin fold, poor diet (Vit B2 and B12)
o Seen in pts with Anorexia/bulemia
o In edentulous pts, when there is decrease vertical dimension, most common sign is ANGULAR CHELITIS
o Can be fungal (Candida) or bacterial
Ideal depth of a bone for an implant 8mm
Clift lip prevalence in USA is 1:700- 1:800 (other source says 1:1000); occurs week 4-5 in utero
o Cleft lip is done in 2-3 months after the child is born
o The lip is corrected as early as is medically possible. The soft palate is closed btw 18-24 months of age
Clept palate occurs weeks 6-8 in utero. The hard palate cleft is then closed around age 4 or 5.
o Alveolar correction surgery is at age 8 before the eruption of canine
o Correcting the alveolar cleft is usually left till a later time, around the age of 8 or 9. If the surgery is conducted
when the child is younger than this, the scar tissue that forms during healing will interfere with the normal
development of the face.
o An alveolar cleft is corrected with a graft of bone and soft tissue
o Sodium hypochlorite in root canal treatment has the following advantages EXCEPT:
1.lubricating, 2.Anti-microbial, 3.Chelating agent, 4.Disinfection
o Gutta percha has the following advantages EXCEPT:
1.easy manipulation, 2. Adapts to tooth surface, 3.Anti-microbial 4. Biocompatible
o During root canal treatment, the operator creates a ledge. What is the next step?
1. Fill up to the ledge and leave the ledge intact,
2. Extract and replace with an immediate implant,
3. Take a smaller file to working length, remove as much debris as possible and gently try to remove the
o What is the NOT an advantage of stainless steel files?
1. More flexible, 2. Less chance for breaking, 3. Allows the file to be centered in canal
Before separation, SS files exhibit fluting distortions, highlighting unwound or twisted regions of
the file signs of fatigue
Nickel-titanium files do not show these same visual signs of fatigue. Discard before visual signs
o Primary endo infection STRICT ANAEROBES: G- Porphyromonas, G- Bacteriodes, G+ Actinomyces (root caries)
o Unsuccessful rct need re-tx from persistent infection of facultative anaerobes
DOC: Pen VK good for strict and G+ facultative anaerobes
Metronidazole is effective against strict anaerobes but not facultative anaerobes or aerobes
o Which has worst prognosis? Ledge in midroot, fracture while obturating, transport through apex in curved root…
Temperatures for autoclaves is governed by FDA.
For carbide stainless steel burs, what form of sterilization does not corrode the surface?
o Dry Heat, 2. Steam , 3. Both Dry Heat and Steam, 4. Neither Dry Heat nor Steam
To improve the quality of radiographic film, what parameter would be altered?
o 1.mA, 2. kVp, 3. Exposure time, 4.
o Less Kvp – low contrast for perio, mA is quantity What bacteria is involved in the carious process but NOT an intitator?
o Streptococcus, 2. Lactobacilli, 3. Actinomyces, 4. Staphylococcus
o There is a question about what is involved in the initiation of caries. Lactobacilli is in 3 choices so if you know it’s
not an initiator, you can deduce the answer
Which tooth is least successful for a patient to remove plaque with floss?
o 1. Maxillary premolar, 2. Mandibular premolar, 3. Mandibular molar, 4. Maxillary molar
A study failed to report 5 cases of caries. What is this called?
o 1. True Positive, 2. True Negative, 3. False Positive, 4. False Negative
Upon extraction of a maxillary molar, a 2mm sinus defect is noticed. What is the next step in treatment?
o No treatment necessary, follow up in 3 days.
o Which premolar is most likely to have 3 canals
A teenager (11 yo) presents with an intruded maxillary lateral incisor (#7). What is the next step of treatment?
o Extract and Implant, 2. Splint for 2 weeks with RCT treatment after, 3. Splint for 2 weeks and follow up
o 4 year old intrudes primary maxillary central, what do you do leave it, wait for it to re-erupt
For a young patient (6 yo), the treatment of choice for a necrotic pulp on permanent first molar would be:
o 1. Apexification (open apex, necrotic) 2. Apexogenesis (open apex, vital) 3. Root Canal Treatment (closed apex)
o It takes 10 yrs from calcification for root completion, 13 years for canine
Which treatment has the least successful long term prognosis on a deep carious lesion on #3?
o Direct pulp capping, 2. Indirect pulp capping, 3. Pulpotomy, 4. Pulpectomy and RCT
What would be the most reasonable cause for a tooth’s symptoms to change from reversible to irreversible pulpitis?
o Accumulation of traumatic injuries, 2. Bacterial involvement inside pulp chamber, 3. Increased intra-pulpal
What is the most accurate pulpal test to determine vitality of a tooth with a full-gold crown?
o Electric testing, 2. Percussion test, 3. Palpation test, 4. Thermal test
What is the outline shape of the access cavity for a permanent mandibular first molar?
o Triangular, 2. Trapezoid, 3. Oval, 4. Circular
On a radiograph, you notice a distal carious lesion on the mandibular first premolar. Upon restoring the adjacent 2nd
premolar, with direct vision, you notice that there is no decay.
o What is the most probable cause? 1. Cervical burnout, 2. Root caries
For a lesion in enamel that has remineralized, what most likely is true?
o The enamel has smaller hydroxyapatite crystals than the surrounding enamel
o The remineralized enamel is softer than the surrounding enamel
o The remineralized enamel is darker than the surrounding enamel
o The remineralized enamel is rough and cavitated
o Know about chalky white lesions
On the cementation day for a full gold crown, what is the first step?
o Evaluate margins, 2. Evaluate occlusal contacts, 3. Evaluate proximal contacts, 4. Evaluate proximal contours
For a surgical extraction of mandibular first molar, what is the best course of action?
o Cut a Y into the coronal portion and extract each root separately,
o Cut the coronal portion from the roots and extract the roots separately,
o Cut the tooth bucco-lingually and extract the roots separately For a surgical extraction, what does not contribute to developing post-operative pain?
o High-speed drill, 2. Low speed low torque drill, 3. Sharp burs, 4. High-speed drill with water spray
Onlay wall preparation:
o Wall:271 carbide bur, 2-5 degree taper, axial walls divergent
o Box: cavosurface margin 30-40 degrees
o Bevel: diamond, 0.5mm width, want 40 degree gold margin on occlusal and groove extension, 30 degree on cusps
o Skirt: extends casting aaround line angle to increase retention and resistance form
pulse n bp what kind of measurement – nominal, ordinal, interval, ratio
temperature – Celsius = interval. Kelvin = ratio.
apirin – single dose – how much time- 4 hours, 1 day, for baby aspirin dosage is 81mg/day
Adenomatoid odontogenic tumor
o Young females, maxilla
o Radiolucency around an unerupted
tooth extending past the CEJ.
o It should be differentially diagnosed
from a dentigerous cyst and the main
difference is that the radiolucency in
case of AOT extends apically beyond
the cementoenamel junction.
Sore muscles in the morning:
o Myofacial pain dysfunction syndorme
Injury Closed apex Primary teeth or Open apex
Enamel fracture – class I Smoothen, restore lost tooth structure. Good px Smoothen enamel, check vitality 1,2,6 months
Enamel/Dentin – class II Restore with bonded resin. Good px. Smooth/restore
Crown w/ pulp – class III
Vital pulp therapy if possible
If not, RCT (also if complex restoration needed)
Vital: pulpotomy, Necrotic: pulpectomy
Horizontal root fracture
Dx with occlusal + 3 PA (at different angles)
Vital: vital pulp therapy + splint
Coronal: splint 6-12 wks, if no reattachment, EXT
Midroot: splint 3 wks, endo if possible, EXT
Apical – good px, pulp should be vital
Coronal ½: splint or EXT
Apical ½: no tx
Luxation Class V
Concussion percussion + Occlusal adjustment, no tx, follow up No tx, CHX if desired, Better px than closed apex
Subluxation mobility + Splint 3 wks if mobile No tx, CHX if desired, Better px than closed apex
Extrusion/ lateral luxation
Resposition, splint, endo if necessary
Extrusion: 65% pulp necrosis
Lateral: 80% pulp necrosis
If before periapical blood clot reposition and
splint 7-10 days
Intrusion Closed apex: ortho/surgery, endo
96% pulp necrosis
No tx unless determined that tooth is impinging
on permanent successor; should re-erupt
Avulsion – class VI
Re-implant immediately (within 0-60min)
Clean socket with saline (no curet), replant
Splint 7-10 days
Pen or Doxy for 7 days
refer for tetanus booster
Within 0-30 minutes
Clean root with saline if contaminated
Tooth in doxy, clean socket
Replant, splint 7-10 days, soft diet
Pen or doxy (if not succeptible to tetracycline
staining); tetanus booster
Re-implant (after 60 min)
2.4% NaF for 5 minutes
Saline, Replant, splint 7-10 days, Pen or doxy 7d
After 60 minutes – replantation not indicated
Endo 7-10 days after replantation in both cases 7-10 days later try apexification Ginseng – antiplatelet (interferes with coagulation – not given with aspirin).
In natural teeth 2 types of hue – yellow and yellow red
o Yellow stain – increases the chroma in the yellow hue
o Orange stain – increase the chroma in the yellow red hue.
o Pink purple – changes the hue of the teeth. Move from yellow to yellow red
o crown – unesthectic value
Width of periodontal ligament –0 .2mm
perodontal stability attachment loss is the most imp criteria in diagnosing periodontal conditions, followed by mobitiliy.
o Partial thickness (mucosal) flap only epi and CT
o Full thickness includes periosteum
Horizontal incisions all three together allow for visualization of alveolar bone
Internal bevel incision:
o 0.5-1mm from fgm apically displaced flap
o 1-2mm from fgm modified widman flap (not reflect beyond mgj)
o Coronal to base of pocket undisplaced flap or reverse bevel incision
o Base of pocket to crest of alveolar bone, conserves papilla;
o (1) + (2) creates a collar of tissue around teeth
interdental incision: separates collar of gingiva from tooth
Cover site with periodontal pack don’t enhance healing rate though.
Contain zinc oxide and some with Abts
Give CHX 2x/day for 1-2 weeks
Bupropion (Wellbutrin, Zyban) is an atypical antidepressant and smoking cessation aid.
o It acts as a norepinephrine and dopamine reuptake inhibitor,
veracity – being truthful to patient
dentist doesnot complete the treatment – pt abandonment
protection act- Good Samaritan Act – is accepted in all states, but dentists are not included in all the states.
Collimation does everything except
o reduce pt exposure, reduce operator exposure, film fog, reduce average energy of x-rays
The Dentist completes exam and advises x-rays but the pt refuses. What should the dentist immediately do.
o Explain the need for X-rays.
What is true of osteoradinecrosis. ANS. Commonly affects mandible
X-ray identification: Median Palatal Suture, Zygomatic process of maxilla, Dorsal Surface of tongue, odontoma
The severity of response increases with the amount of X-ray exposure. This effect is called:
ans is Deterministic, Stochastic, Genetic??
o Radiosensitive cells ANS. Hemopoeitic bone marrow.
o When there is no barrier, protection of dentist. 6 feet; 90-135 degrees
o If the buccal root of maxillary ist premolar appears distal to palatal root .The X ray was mesially angulated
o Reverse occlual plane on a panoramic view. Chin tilted upwards;
smiley(happy face) is chin down.
o Best view to observe pathology of maxillary sinus
CT , Panoramic, Lateral skull view ( all these are good to view max sinus) waterso What is the reason for increased radio-opacity on the mesio-occlusal surface of maxillary I molar.
Cusp of Carabelli, restoration on disto-lingual surrface, dens in dente
Transillumination is useful in the diagnosis of .Class 1, class 2, class5, class3
Commonest tooth with vertical root fracture .Maxillary incisor, mandibular incisors, maxillary molars, mand.molars.
Which tooth refers pain to the ear ANS. Mandibular molar
Referred pains: Max Incisiors – Naso labial, Canine – Frontal region, Premolars – Temporal region, Mand. Molars – Ear and
Which are the two most imp. steps for diagnosis. History and clinical examination
Which procedure does not require antibiotic prophylaxis
o Non surgical endodontic treatment, Scaling and root planing, Extraction, surgical treatment.
Material used for mouth guard vital bleaching ANS. 10% carbamide peroxide.
Most critical for pulpal protection ANS. Remaining dentin thickness 2mm
Critical factor determining the success of implantation of avulsed tooth – time
Tooth with the best prognosis ANS. Internal resorption Q about characteristics of internal resorption
What is the effect of extraction of primary 2 molar on the eruption of 2nd premolar with one third root formation .
o Eruption is faster. Eruption is slow, no effect on eruption rate, condition varies depending on the patients age.
Which structure exhibits synchondrosis
o Where the connecting medium is cartilage, a joint is termed a synchondrosis.
o An example of a synchondrosis joint is the sternocostal joint (where the first ribs meet the sternum). In this
example, the rib will join up with the sternum via the costal cartilage.)
What is the effect on growth of a child with unilateral sub-condylar fracture retarded growth
Gingival index is an example of .ordinal scale, nominal scale
Hybrid layer. ANS primer within intertubular dentin
The provoking factor for pain after placing bridge. Heat, cold, sweet, biting(occlusion)
Kerrs syndrome Kerrs syndrome shows all except Maxillary ridge resorption, flabby tissues, enlarged tuberosities, increased
vertical dimension of occlusion.
Lack of function of indirect retainer is manifested by ANS. Lifting of distal extension away from tissues.
Common feature between porcelain veneer and all-ceramic crown preparation – rounded internal line angle
How do you decrease the width of artificial teeth.
Deepen the facial line angle proximally and increase the interproximal embrasure
Deepen the facial line angle proximally and decrease interproximal embrasure
take the facial line angle labially and increase the interproximal embrasure
take the facial line angle labially and decrease the interproximal embrasure
The dentist cements the porcelain veneer with light cured resin and the patient returns with brownish discoloration at the
o not enough cement or microleakage(depends on duration of pt return)
combination syndrome with maxillary CD opposing Mandi Natural Ant patient receives a blow to the chin who has a MOD inlay placed on the maxillary molar 3 months earlier.Now the patient
has a vague pain on biting ,there are no other symptoms.why? maxillary sinusitis, m-d fracture, b-l fracture
when you wax the removable partial denture on a cast; what is it called- Master cast, refractory cast
Purpose of addition of tin and indium to metal ceramic alloys ANS.chemical bond-covalent bond
Cause for post-operative sensitivity of composites – shrinkage
Something about how soon do you see the marginal leakage or discoloration…?
The condylar guidance is increased from 20 to 45 degrees,what do you do.
o Increase the compensatory curve
o the curvature of alignment of the occlusal surfaces of the teeth that is developed to compensate for the paths of
the condyles as the mandible moves from centric to eccentric positions.
o A means of maintaining posterior tooth contacts on the molar teeth and providing balancing contacts on dentures
when the mandible is protruded.
o Corresponds to the curve of Spee of natural teeth.
curve of Spee
o an anatomic curvature of the occlusal alignment of teeth, beginning at the tip of the mandibular canine, following
the buccal cusps of the natural premolars and molars, and continuing to the anterior border of the ramus, as
described by von Spee.
the curve of the occlusal surfaces of the arches in vertical dimension, brought about by a dipping downward of the
mandibular premolars, with a corresponding adjustment of the maxillary premolars.
curve of Wilson
o the curvature of the cusps, as seen from the front view. The curve in the mandibular arch is concave, whereas the
one in the maxillary arch is convex.
o a curve of occlusion that is convex upward when viewed in the frontal plane.
What is rest position – muscle guided
Centric occlusion is tooth guided, centric relation is ligament guided.
You are giving cusid-cuspid bridge and want to change the canine guided anterior disclusion.What is required. –
o change to group function
All are requirements of interocclusal record material except.
o Hard when set, capable of trimming with sharp knife after set, resistance to biting.
All are symptoms of TFO on an implant except. Gingivitis, pain, loosening of implant, breakage of abutment screw.
Heart rate of Age 3 is 110, age 5 is 100, age 12 is 75 and adult is 70
o Resp rate: 25, 20+, 20-, 15
Greatest incidence of malignancy is seen in Pagets disease, monostotic fibrous dysplasia
o malignant change ,usually development of osteosacoma has been RARELY associated with fibrous dispalsia.
o radiation for this lesion is contraidicated because it carries the risk for developmant of post-radoiation bone
o Development of malignant bone tumor, usually an osteosarcoma is recognized complication of Paget,
frequency of osteosarcoma is 1%,mostly long bone.
Oral granulomas, apthous ulcer, rectal bleeding is seen in. Wegeners granulomatosis, ulcerative colitis, crohn’s disease.
Pierre-robin syndrome consists of a triad of retrognathia, glossoptosis, cleft palate.
Most important factor in shade selection. ANS-value Flexibility of a clasp arm depends on all except. Length, taper, circumference, depth of undercut,
Which is most rigid .pd-Ag, typeIII gold,typeIV gold.
Least wettability is seen with which impression material.polysulfide, condensation silicones, hydrocolloids, polyether.
Most stable in moisture environment. Polysulfide, condensation silicones, addition silicones, polyether.
Setting of polyvinylsiloxanes is retarded by. ZOE, latex gloves, ferric chlorides, aluminium chloride
Which produces least change on implant surface while removing calculus. Ultrasonics, sonics, curettes, plastic curettes
What has ultimate effect on the thickness of epithelium of free gingival graft. Recipient epithelial tissue, donor epithelial
tissue, donor CT, recipient CT
Disadvantage of partial thickness flap are Visibility, access???
The purpose of GTR is to prevent. Long JE, migration of PDL cells, Migration of CT cells.
The resorption of bone in PD disease is caused by.IL1, IL8, IL10
o IL 8 – chemotaxis, IL 10 is macrophages.
The biological width is 2mm,3mm, 4mm, 1mm, 5mm.
The internal bevel gingivectomy extends approximately from 2mm from margin to base of pocket or crest
Indications for gingivectomy – gingival hyperplasia,
The purpose of barrier. Apical movement of PDl cells, Coronal movement of cells.
Gingivectomy is contraindicated in .The sulcus is apical to gingival groove, sulcus is apical to convexity of tooth, sulcus is
apical to the crest of alveolar bone.
periodontal pathogens in health- ANS Gram+ facultative cocci and filaments.
Desquamative gingivitis is associated with which 2 conditions. Pemphigus and bullous pemphigoid, Lichen planus and
o Pemphigus – supra, acantholysis
o Pemphigoid – basal
o Questions about lichen planus
The depth of sulcus is 5mm the distance between CEJ and the base of sulcus is 2mm.what is the attachment loss. – 2mm
The role of chlorhexidene is cos of.ANS- Substantivity – high concentrations for long time
Condition seen in normal individuals and also in pregnant patients.ANS Pyogenic granuloma or pregnancy tumor.
Antibiotic seen in GCF- ANS Doxycycline, minocycline
First thing u need to check while placing crown.ANS Esthetics then Proximal contact
Miller classification for recession
o Class I: recession doesn’t extend to mgj, no bone or soft tissue loss interproximally good to excellent px
o Class II: recession on or beyond mgj but no bone or soft tissue loss interproximally good to excellent px
o Class III: recession on or beyond mgj, with bone and soft tissue loss interdentally partial coverage result
o Class IV: recession on or beyong mgj, severe bone and soft tissue loss interdentally poor prognosis
suprabony pockets, suprabony periodontal abscess Mechanisms of healing after perio surgery
o Regeneration: growth and differentiation of same type of tissue that was damaged by disease
o Repair: healing by SCAR
o New attachment: embed new pdl fivers into new cementum and attachment of ging epi to a previously diseased
Implant vs. Tooth
o No PDL, no supracreastal CT insertion into the implant
o May probe to the level of the bone (no JE to stop you)
o Will not erupt so don’t use in growning individuals
Screw loosening (posterior > anterior), implant fracture (<1%)
Peri-implant mucositis = gingivitis
Peri-implantitis = periodontitis
Periostat = subantimicrobial-dose doxycycline (SDD) selectively inhibits MMP-8 and MMP-13 destruction of collagen.
o Approved as adjunct to SRP tx of chronic periodontitis
o 20mg dose 2x/day for 3-9 months; CI: preggers, kids under 12, tetracycline allergy
o Gingivectomy elim SUPRAbony pockets, gingival enlargements, suprabony perio abscess
CI: osseous recontouring, pocket is apical to mgj, inadequate attached ging, esthetic concern
Bevel incision apical to pocket depth
Healing by SECONDARY INTENTION (clot, epithelial migration, ct repair
o Gingivoplasty reshape tissue: clefts, ging enlargement, shelf-like papilla
CI: reduce or eliminate periodontal pockets
o Mucogingival surgery widen attached gingiva, deepen vestibule, resection aberrant frena
via graft and AP flap
o Osseous Surgery
Correct osseous M and D crater by recontouring F and L walls
Correct vertical or angular defects by resective osseous surgery or perio regeneration
Ressective osseous surgery for interprox bony craters, early furcations, cases w/ thick alv bone
Ostectomy removing tooth-supporting bone; must be sure to remove “widows peaks”
Osteoplasty removal of nonsupporting bone
GTR prevent epi migration on cementum while pocket is healing from flap reflection
Membrane used to exclude epi and CT from root and protect clot formed
Citric acid and/or Emdogain enhance new attachment of ging tissues following excision
Titanium implants offer the best biological attachment to bone and gingival tissue osteointegration
The normal recall appointment between periodontal treatment. 3 months, 1 month, 4 month, 6 month
45 year patient comes for appointment schedule.His B.P is 160/100.What should the dentist do.
o Call up the physician, reschedule appointment when the B.P comes down , check B.P again after 15 mts
Frequent urination seen during 3rd trimester ANS. Pressure on the bladder.
Curettes used for distal surface of maxillary II molar ANS. #13-14
Pt comes with carious involvement and localized swelling of cheek.What is the immediate treatment. establish drainage
After periodontal surgery, the dentist leaves interproximal bone apical to radicular bone.What is this called
o negative architecture.
Evaluation after scaling and root planning is done after how many days. 7-10 days, 14-21 days 4-6 weeks Order of tx: emergency, disease control, re-eval, definitive, maintenance
Mode of action of ultrasonics. ANS. Vibration in elliptical (magnetostrictive) , sonics is linear(work with air)
Which of the following is not an advantage of Ni-Ti over stainless steel file. Maintains the shape of canal, flexibility,
resistance to fracture.
Best theory to explain dentin hypersensitivity. ANS Hydro dynamic theory
Gastric acids cause. ANS. Erosion
Primary effect of an over hang. ANS interferes with plaque removal
Medications associated with hyperplasia. Calcium channel blockers, Dilantin sodium, Cyclosporine
In most of the cases, localized fibromas are often: Dysplasias, metaplasia, anaplasia, hyperplasia.
The major environmental risk factor for periodontal disease. Diabetes, smoking
Which is not true of elder abuse.
o Most of the elder abuse is at victims home
o Mostly it is by victims relative,
o Elder’s abuse is often over reported and exaggerated
o un-authorized use of ATM card is some times considered crime but not abuse
Most common condition affecting elders. ANS Depression
All are seen in DI except.
o Large bulbous crowns with short tapered roots
o large irregular dentinal tubules
o accentuated DEJ
o opalescent hue
In a scientific article, where should the description of study sample be? materials and methods, results, discussion
Common form of leukemia in children – Acute lymphocytic leukemia
o acute leukemias respond to tx well, chronic doesn’t .
o AML is worst prognosis
Viral load for HIV pts – test sensitivity – detect more than 48 viral copies.,
o Neutrophils – less than 500 no tx
o Platelets – below 50000 no tx
o CD4 – should be 200, but 50 is critical.
Increased no.of teeth + supernumerary and impacted teeth is seen in ANS. Cleidocranial dysplasia.
o Gradner’s syndrome has supernumerary teeth.
When should the dentist not use para-phrasing.
o When trying to speak to a patient in his second language
o When the dentist is upset with what patient says
o when giving factual values.
o How does patient determine if pt can sign concent forms?
The patient who is diagnosed with Basal cell carcinoma, says to the dentist “give me the report, do I have cancer”, what
should the dentist’s initial reaction be. Pic of basal cell carcinoma, white old man, outside of mouth…
o DO you have any one accompanying you, this cancer has better prognosis than other cancers.
mosby pg 252
piezo Which of the following is not recommended for a patient who is on Nicotine de-addiction
o mucous patches, nicotine gum, Bupropione, nicotine nasal sprays.
o Buproprione is also used to treat depression
Which of the following does not have cauliflower like , pebbly appearance.
o Verrucous carcinoma, fibroma, condyloma accuminata, papilloma.
o Description of papilloma
Common finding in a patient with cerebral athetoid palsy. ANS. Anterior teeth fracture
Anti-fungal used as troches for treatment of oral candidiasis.ANs Clotrimazole
o swish and swallow is nystatin.
o AmphotericinB is only antifungal given in IV
o Fluconazole(tab) is given for systemic candidiasis.
The direction of healing of wound after extraction of tooth in mandibular arch
o outward and upward, inward and down ward
Infections from mandibular premolars spread to which space Submandibular, because the roots are below the mylohyoid.
Anterior roots above the mylohyoid has submental spread.
Cellulitis most of the time involves unilateral, ludwigs angina is bilateral and complication is edema of GLOTTIS.
The patient who is a tobacco addict says to the dentist,”I want to quit the habit”,what should the initial reaction of the
All are seen in a patient with sjogrens syndrome except: sicca, xerostomia, lymphoma, arthritis, other choice is option.
Amount of fluoride supplementation required in 16 yr .0 mg
The greatest incidence of dysplasia and carcinoma in situ erythroplakia
Clinical photographs- Lymphoepithelial cyst, cheek biting, smokers palate, Dentinogenesis imperfecta, facial palsy,
migratory glossits, mucocele, fordyces granules
Dentist realizes that the distal margin of crown preparation is within 1mm of interdental bone.what should the dentist do.
ANS crown lengthening
Necrotizing sialometaplasia minor salivary gland disease presents on the palate which is most commonly confused with
carcinomas due to the ulcerated presentation. Heals without scarring.
Transillumination in children is used for sialolithiasis
Questions on herpes ulcers and apthous ulcers
The patient develops oral ulcers and target or bulls eye skin lesions within 24 hrs.ANs Erythema multiforme
Suppuration is seen with ANS.Actinomycosis – sulphur granules, seen in the neck.
A chronic alcoholic requires extraction what test should the dentist advise for INR
which of the following is not true for a patient requiring surgery and on oral anti coagulants.
o PT should be 1.5-2 times that of control, INR should be above 2.5
o Norma INR is 1, can be treated till 3(acc to manual)
Question on parulis
o bumps on the gum parulis
o Pyogenic granuloma, peripheral gaint cell granuloma, peripheral ossigying fibroma, peripheral odontogenic
, vesicles are not seen in apthous ulcers
due to cirrhosis of liver
,also known as gum boils looks like sinus tract A patient received radiation therapy and requires extraction,what should the treatment be.Extraction, extraction with
alveoloplasty and sutures, extraction with alveoloplasty of basal bone and suture, pre-extraction and post extraction
Virus associated with Chicken pox also causes ANS herpes zoster
Unilateral lesions after herpes zoster infection. Reactivation of the virus from sacral ganglion causes shingles
o induced by stress and sunlight exposure.
Fluoride supplement required in a 2.5 yrs child in a non-fluoridated area 0.25mg
Community water fluoridation – 1ppm, school water fluoridation – 4.5ppm
A 4 yr old child management empathy and respect
Management of moderately apprehensive child Replacing words like LA with sleepy juice is called as Euphenism.
Use of praise, smile and appreciation is-Token(positive) reinforcement, social reinforcement
What is not an advantage of rubber dam when compared to not using it. Improved properties of materials, shortens
operative time, facilitates the use of water spray
Closest resemblance of deciduous mand II molar permanent mand I molar
The success of implants does not depend on Age of the patient
Prilocaine above 500mg causes: Apnea, cardiogenic shock, methemoglobinemia
Complication associated with removal of internal oblique ridge (mylohyoid) ridge. ANS Lingual n
The drug which causes withdrawal symptoms in pts taking oxycodene mainly pentazocine and nalbuphine
The drug contraindicated in pt taking ginkgo biloba.Heparin (CI with antiplatelet/anticoagulants) also CI garlic & ginseg
o Ginseng used for male impotency, diabetes
o Ginkgo biloba – used for memory loss.
The drug of choice in patient with bradycardia – Atrophine, Epinephrine.
Which of the following does not have anti-inflammatory action. ANS Acetaminophen
Some question on difference between aceta and aspirin but it was about about anti-inflam action. Something about
duration I think
The immediate choice of tx for large radiolucency in the mandible. Biopsy, aspiration biopsy and wait for the bone to fill in
o Safest of all biopsies – aspirational
The common symptom of trismus is associated with which space involvement.
o Sub-masseteric, superficial temporal, During IAN block, pierce Buccinator muscle and inject in pterygomandibular
The patient returns to the dentist the next day after extraction with pain and swelling.
o The drug of choice in this penicillin allergic pt. Clindamycin 300mg qid
The restraining of uncooperative 2 yr child should be done by Dentist, Assistant, Parent
Why shouldn’t patient be in the room?
The information about hazards of chemicals used in the office should be present in ANS. Material safety data sheets
o Red – flammable
o White – Personal protection
o Blue – health hazard
pterygomandibular space with medial pterygoid injection
* Chamomile is CI with Warfarin or other Anti coagulants.o Yellow- identitifies the reactivity or stability of a chemical.
The failure of a test to detect the presence of 5 cases of disease. ANS. False negative
The dentist separately for core-build up and the crown but the insurance company says that the core build up is part of
crown.what is this called. bundling know unbundling also
the investigator studies the occurrence of oral cancer in pts in a private nursing home. what is this?
o Cross-sectional study, longitudinal study, Descriptive epidemiology(prevalence and incidence)
common missing permanent tooth ANS. Maxillary third molar also mand second pm>maxi lateral inc>max 2nd PM
The main role of chlorhexidene before surgery ANS. Reduce the no.of microbes
Blood transfusion before surgery should be done when the platelet concentration falls
o below. 20,000, 50,000 , 100,000
Crowing sounds are seen with. Croup AKA Laryngospasm
o Asthma – Exhalation wheezing
o COPD – expiration wheezing.
o Croup——Barking Cough
The most effective method of caries reduction. ANS. Systemic water fluoridation
5 A’s of cancer prevention : Ask, Advise, Assess, Assist, and Arrange
The Child has 12 deciduous and 12 permanent teeth.what is the age of the patient 8-9 yrs 12CDE6 in Palmer notation
When does the calcification of permanent incisors occur 3-4 months(decks) Excepting maxillary lateral incisors 10-12
The drug of choice in status epilepticus Diazepam
The bacteria that causes rheumatic fever.streptococcal infection like sore throat or scarlet fever
What is the correct method of excavation of deep caries. Long bur from periphery to the center
Purpose of post .retention of core
Threaded post, what is the best way to prevent root fracture when inserting?minimum force and passive insertion
Apical closure of permanent tooth occurs. ANS.21/2 to 31/2 yrs after eruption
The dentist realizes that there is formation of ledge.what should he do next.ANS Gently by pass the ledge.
Pt asks questions regarding the face mask, gloves and other sterilization methods.what should the dentist say. probably
something to do with standard(universal) precautions
The patient retires and loses health benefits. treatment is done on the next day. the pt requests the dentist to enter the
previous day date and the dentist does Fraud
The frequent intake of juices by the child does all except. ANS. Increase ph., juices decrease PH
Child goes to bed with bottle filled with ________________, which one doesn’t cause caries?
o Choices were formula with F- water, plain non F- water, 100% juice, and something else
Which is true of intra pulpal anesthesia? produces anesthesia after 30 sec, it does not cause the discomfort to patient,
produces anesthesia by pressure. The position of permanent incisors in relation to deciduous incisors. ANS.inferior and lingual
Advantage of distraction osteogenesis over ostectomy . better patient compliance, wider range movements, less relapse
and can be done in yonger patients
What is not true of alveolar osteitis (dry socket). ANS pain starts on the first day,
curettage should not be done in pts with dry socket, no antibiotics.
Acid-etching does not cause. Reduced leakage, better esthetics, increased strength of composites.
Purpose of placing posterior palatal seal ANS.compensates for shrinkage.It adds retention and avoids food lodgement
o Factors to consider when designing posterior palatal seal…
Patient comes back to the clinic 5 hrs after extraction with bleeding. what should the dentist do. ANS.search for the source
flexibility of the clasp depends on all except. Depth of the undercut, cross-section of the clasp arm, taper of the clasp,
length of the clasp.
Pt after scaling and root planing and with excellent oral hygiene does not show reduction of pocket depth, what is the next
step for the dentist to do.ANS. Periodontal surgery.
Common location for periodontal cyst. ANS. Lower bicuspid
o lateral periodontal cyst is detected only during radiographic examination
o 65% of cases occur in mandibular canine-premolar area.
Patient has 2mm communication with the maxillary sinus. what is the treatment of choice.
o 2mm: don’t do anything and follow up
o 2-6 mm: place gel foam (surgicel), suture ,decongestant and antibiotic , inform patient
o more than 6 mm: buccal flap
How to split the impacted mandibular tooth when viewed from occlusal.+, Y slope, split buccal to lingual till the furcation.
Potency response to a drug over a given range of concentrations.
o Potent = depend on dose of drug
o less mg for same efficacy has more potency
efficacy the max effect of the drug. Max effect is also called as intrinsic activity.
Therapeutic index – is an estimate of the margin of safety of a drug.
o TI = Lethal dose 50/Effective dose 50
What is bioavailability of a drug. – amount of drug that is available is blood.
What is the effect seen when propranolol and epinephrine are injected simultaneously
o in cases of mild reactions it causes hypotension; in severe reaction it is malignant hypertension
Synergism – same target of action-increase action
o additive – target of action is different
Patient c/o burning sensation at the corner of the mouth – angular chelitis
6yr old complaining of halitosis
o can be a symptom of various conditions including: postnasal drip, dry mouth, dental problems, abcess, and
o often due to the decomposition of mucus secretions and debris which accumulate on the tongue, in the nose, and
between the teeth. Patient c/o frequent dislodgement of anterior crown (post and core) Inadequate ferrule for crown Read Mosby pg 27
Extension of lower denture – till retro molar area :
o primary support area on mandible: Buccal shelf ,
o primar support area on maxilla: Ridge, secondary on max – rugae.
What incision is given to remove palatl tori – double Y incision was not the choice ;
o other possible answer might be a linear incision from A-P with oblique releasing incisions
How do u clean implants – scaler with a plastic sleeve; rubber cup and paste, stailess steel scaler, titanium scaler
It is required/mandatory to report all except – child abuse, reaction to drug, one more choice,
o Abuses that have to be reported to authorities
colleague practicing with chemical impairment
colleague advertising on electronic media
Listerine – Phenolic compound – Listerine is a combination of alcohol + phenolic compound.
o Burning after use of mouth wash is due to alcohol (causes drying of the mucosa).
Patient had old PFM on # 9, he complains that PFM is lighter than other teeth, what will u do? – change PFM, bleach teeth
o When will you bleach teeth in anterior veneer prep- before veneer prep, wait for 2-3 weeks
o bleaching affects both enamel and dentin
incisal guidance – guided by overjet and overbite
IRM is – what is the compoisition – zinc oxide-eugenol with polymer reinforcement.
where will you place the margins in a anterior PFM prep – Subgingival, at the crest
PVS impression material has which of the following – is unstable, doesnt come out completely from tissue undercut,
releases alcohol as byproduct, may release H ion
Mostly periodontits occurs in : Diabetes, Tobacco
St John Wort(herb) is used for – mild depression
Drug that interferes with coagulation – Saw palmetto
o Saw palmetto products could theoretically interfere with blood coagulation, so concurrent use with blood thinning
medications, such as coumadin (warfarin,aspirin and other NSAID’s) should be avoided.
Hyperthyroidism restless/irritable, heat intolerance, weight loss, muscle wasting, tremor, diarrhea, sweaty, fine hair
o Causes: Graves, Thyroid adenoma, Pituitary adenoma (2˚ hyper), Hashimoto’s thyroiditis (early)
Hypothyroidism mental slowing, cold intolerance, weight gain, deep voice, constipation, edema, dry skin, hair loss
o Causes: Cretinism (child), Myxedema (adult), Hashimoto’s thyroiditis (late; autoimmune)
Hypoglycemia is common in : Hypotension, Hyponatremia, Hypokalemia
Drugs used to control salivary secretion – Pilocarpine, cevemille – increases, Atropine – decreases
To expose a mandibular lingual torus of a patient who has a full complement of teeth, the incision should to
o a. Semilunar b. Paragingival
o c. in the gingival sulcus and embrasure area
o d. directly over the most prominent part of the torus
o e. inferior to the lesion, reflecting the tissue superior ARCON ARTICULATOR – An instrument following anatomic guidelines such that the ball of the condyle analogs are carried
on the mandibular element, and the fossa assemblies on the maxillary element.
CONDYLAR ARTICULATOR – A non-arcon articulator.
Advantage of Arcon over Condylar Articulator
o When using an occlusal record to relate opposing casts, the thickness of the record increases the VDO upon
o When the record is removed the condylar guidance inclination would be decreased in the non-arcon articulator
creating a potential negative error in excursive movements.
Pt has a stable bite, ant. guidance is fine and you need to fabricate FPD. What kind of articulators? – Semi adjustable.
o (Class 1) A simple holding instrument capable of accepting a single static registration. Vertical motion is possible.
o (Class 2) An instrument that permits horizontal as well as vertical motion but does not orient the motion to the
o Uses: Single restorations, multiple restorations if good bilateral cuspid disclusion exists; Certain FPD’s.
o (Class 3) An instrument that simulates condylar pathways by using average or mechanical equivalents for all or
part of the motion.
o These instruments allow joint orientation of the casts and may be arcon or nonarcon instruments.
Non arcon: Hanau H2, Arcon: Whip Mix
o Uses: Multiple restorations; Fixed partial dentures with: minimal occlusal pathology, no loss of VDO, no immediate
side shift, Full mouth restoration if good anterior guidance exists.
o (Class 4) An instrument that will accept three dimensional dynamic registrations. Those instruments allow for
orientation of the casts to the temporomandibular joints.
o Uses: Full mouth restoration, Extensive occlusal pathology, Group function/posterior guidance, Restoring at a
Purpose of making plaster index of complete denture – to preserve face bow record
Why do we remount complete denture?
o The first remounting is performed before the dentures are handed in to the patient and the second after a certain
time of wearing.
o The first procedure corrects occlusal errors resulting from imperfect fabrication
o The second, after wearing of dentures, adjusts the denture base on the denture foundation.
Lesion that blanches – Leukoedema – it disappears on streching, it is always bilateral.
Apexification (necrotic pulp) and apexogenesis (vital)
Tooth responds with lingering pain to cold – irreversible pulpitis with normal periradicular tissue; irreversible pulpitis with
chronic periradicular tissues
Hallmark of periradicular abscess – sinus tract
Hallmark of acute periradicular periodontitis – sensitivity to percussion
Rubella embryopathy – also called chronic rubella panencephalitis
o Occurs during 1st trimester. Fetus has microcephaly, deaf, cataracts, congenital
heart disease, purpura
Periodontium surrounding the implant – no periodontium, bone and implant.
Differentiate perio and pulpal abscess- Endo to perio lesion is outward, Perio to Endo lesion is inward.
Which has best px? Perio lesion caused be endo, endo lesion caused by perio, combo lesion, perio caused by perio… Reliable test for teeth with open apex – heat, cold,
ept— same when tooth has gold , or porclain crown
Organisms in chronic periodontitis – P. gingivalis:
o Aggresive perio – Loclaized: AA, Gen is
Prevotella intermedia, Eikenella corrodens
Midline swelling all except – globulomaxillary cyst
(doesn’t really exist but is a RL between maxillary
lateral and canine)
o midline swellings – nasopalatine, median
rhomboid, thyroglossal duct, dermoid cyst
granuloma + bleeding + apthous ulcer -: ulcerative colitis, crhons disease
how to prevent proximal displacement of Cl II filling – retention grooves
how to increase the resistance and prevent from fx of the restoration: dove tail it provides the retention form
Coefficient of thermal expansion is most for which material – tooth < gold < amalgam < filled resin < unfilled resin
Epi in each ml of lido with 1:100,000 0.018mg per carpule
o Max dose of epi for cardio pt—– 0.04mg, Two carpules
o Max dose of epi for healthy pt—- 0.2 mg, Eight carpules
Rule of 6s
o F- > 0.6 ppm NO SUPP
o Pt < 6 mos NO SUPP
o Pt > 16 yrs NO SUPP
2.2 mg of NaF will provide 1 mg of Flouride *memorize*1.1 mg of NaF will have 0.5mg
Tooth release of pain on biting and sensitive to cold – cracked tooth syndrome
o Tooth with a recent crown – sensitive to cold and biting ( hyperocclusion)
Diagnosis of ANUG – punched interdental crater on the interdental papilla, fetid odor, metallic taste and pseudomembrane.
Reason of cheeck biting in a denture patient – when mandibular molars placed more buccally
IF ANB is -8 what type of malocclusion—Class III
o SNA position of maxilla; normal = 82
o SNB position of mandible; normal = 80
o Convex profile Class II
o Concave profile Class III
o ANB >4* then Class II ANB<0 then Cl3 What is ANB? Relation of maxilla to mandible
o Cl 1 average 2 ; range 0-4 degree
o Cl 2 average 7 ; range 4-12 degree
o Cl 3 average -1 ; range -6 -0 degree
What will happen if pt consumes too much of opiod analgesic – respiratory depression
pic of cyclosporine (probably gingival hyperplasia)
complication following distraction osteogenesis : – long term followup, nerve damage
NaOCl does all except – chelating agent Pharmacology
o Overdose of PRILOCAINE – Methemoglobenemia
o Lidocaine toxicity is due to – overdose – increased vasoconstrictor, due to preservative.
o Drug with no inflammatory action – acetaminophen
o Antidote for benzodiazipine overdose Flumazenil (Anexate)
o Antidote for opiods Nalaxone , Naltriaxone
o Treat alcohol addiction Disulfiram
If dentist seals a small carious lesion what happens – caries stops, caries increases
o Amoxillin – 500mg TID
o Clindamycin – 300mg qid, longterm usage is pseudomembranous colitis
o Cefalexin – 500mg qid
Premedication single dose, 30-60 minutes before procedure
o Oral: Amox 2g; 50mg/kg
o IM or IV: Ampicillin 2g; 50mg/kg OR Cefazolin/Ceftriaxone 1mg; 50mg/kg
o Pen allergy: Clindamycin 600mg; 20mg/kg OR Cephalexin 2g; 50mg/kg OR Azithromycin 500mg; 15mg/kg
o IM or IV: Clindamycin 600mg; 20mg/kg OR Cefazolin/Ceftriaxone 1mg; 50mg/kg
When will the BULL rule be utilized with the selective grinding working side ONLY
Pan showing lucency going inferior over the body of mandible close to the angle. Informed the patient was involved in an
accident. Identify the lucency fracture
There are more detached plaques within supragingival plaques that subgingival plaques. The detached plaques within
subgingival area are the ones that are more toxic to tissue than attached plaques
o both statements are correct
o the first statement is correct but not the second
o the first statement is wrong, but the second statement is correct – supragingival plaque is always attached and
subgingival is unattached.
o both statement are wrong
Organism that cause severe spreading abscesses include: Fusobacterium, Campylobacter, Enterococci, Bacteroides
o Unbundling: “the separating of a dental procedure into component parts with each part having a charge so that the
cumulative charge of the components is greater than the total charge to patients who are not beneficiaries of a
dental benefit plan for the same procedure.”
o Bundling: “the systematic combining of distinct dental procedures by third-party payers that results in a reduced
benefit for the patient/beneficiary.”
o Upcoding or overcoding: “reporting a more complex and/or higher cost procedure than was actually performed.”
o Downcoding: “a practice of third-party payers in which the benefit code has been changed to a less complex
and/or lower cost procedure than was reported except where delineated in contract agreements.”
o Recording of retro mylohyoid area during border molding – muscles in this area are Superior constrictor(directly),
o On the buccal of mandibular border molding – u record Buccinator when the pt opens his mouth.
When the posterior border(distal of tuberosity) of the max denture is thick, the denture dislodges as the pt opens because
the coronoid process hits the denture.
If hamular notch hits retromolar pad, what do you need to do before fabricating denture? Reduce tuberosity
Intestinal polyps: Gardner’s, Peutz Jeghers syndromes. Cafe au lait spot – Peutz Jeghers syndrome, Albright’s syndrome, Basal cell nevus bifid rib syndrome (gorlin – goltz
syndrome), Jeff’s syndrome (severe form), Neurofibromatosis
Peutz Jegher’s syndrome – inherited intestinal polyps; higher risk for cancer.
o S/s: Brownish or bluish-gray pigmented spots, Clubbed fingers or toes, Cramping pain in the belly area, Dark
freckles on and around the lips of a newborn, Blood in the stool that can be seen with the naked eye (occasionally),
o Tx: remove polyps with surgery; Iron supplement
o Question on gorlin-goltz and 2 on neurofibromatosis
OKC has scalloping of radiolucency around the roots
Cemento-osseous dysplasia Black women, middle aged , anterior radioluceny (can be radio opaque); vital; no symptoms
A study is designed to determine the relationship bet. emotional stress and ulcers . To do this, the researchers used
hospital records of pt’s diagnosed with peptic ulcer disease and pt. diagnosed with other disorders over the period of time
from july 1988 to july 1998 . The amount of emotional stress each pt. is exposed to was determined from these records.
This study is
o Cohort, Cross-sectional, Case-study*, Historical Cohort, Clinical Trial
Why is the surgical stent required for an immediate denture? to give an idea of the anatomy of the region
Which tooth will the matrix band be a problem with when placing a two surface amalgam?
o mesial on maxillary first molar b/c of the cusp of carabelli
also Mesial Of max premolar> Distal of max molar
Asprin stops pain by
a. stopping the unpward transduction of pain signal in the spinal cord
b.intefere wiht signal intrepretation in the CNS
c. stopping the local signal produtction and transduction
d.stopping the signal transduction in the cortex
Maximum dose of
o Prilocaine 400mg METHEMOGLOBINEMIA
o Mepivicaine 400mg = 80ml of 0.5% or 40ml of 1% LEAST VASODILATOR EFFECT
o lidocaine without epi 300mg (about 9 carpules)
o lidocaine with epi 300mg
o bupivacaine 90 mg MORE SELECTIVE FOR SENSORY NERVES
o *all are amides metabolized in the liver
o Autonomy “self-governance” duty to respect the patient’s rights to self-determination and confidentiality
o Nonmaleficence “do no harm” duty to refrain from harming patient
o Beneficence “do good” duty to promote the patient’s welfare
o Justice “fairness” duty to treat people fairly
o Veracity “thruthfulness” duty to communicate truthfully
Which of the following mandibular fracture will heal in 4-6 weeks? Symphysis
Question said when does bony healing begin? 1-3 weeks, 4-6 weeks, …
Mandibular Fractures – can always be visualized on pano radiograph; take 2nd with another view to confirm
o Condylar 29%
o Angle 24.5%
o Symphysis 22%
o Body 16%
Pt on kidney dialysis, when can you perform TE? One day after dialysis
o Pt with end stage renal disease (ESRD) >>> 1)are on steroid therapy 2)prone to bleeding 3) do NOT use NSAID
because they cause nephrotoxicity Action of Listerine it disrupts adhesion of bacteria to plaque; is a phenolic compound
o LISTERINE :Antiseptic mouthrinse is a broad-spectrum antimicrobial, and it kills bacteria associated with plaque and
gingivitis by disrupting the bacterial cell wall.
Chlorhexidine The mechanism of action is membrane disruption . It has Substantivity
Dental anxiety can be caused by Pt’s helplessness. What would reduce it? Telling Pt to raise her/his hand when feels pain
What does St. John’s Wort do? Decrease the body immunity, it is involved in most drug-herb interaction.
o Note: there is no option “anti depressant” in choices.
o in Pt with HIV it interacts with anti HIV drugs such as Indinavir (increase immunity) and reduces their function so
the immunity decreases
Primary risk factor for periodontitis? Tobacco
o By recent studies, which one has correlation with periodontitis? Diabetes – diabetics are 15 times at risk
A kid is on recall appointment and is not cooperative. You should do voice control followed by? Alternating appraisal
What is the side effect of pilocarpine (Tx of dry mouth) in toxic dose? Bradicardia and hypotension
o Nontoxic side effects: excess sweating and salivation, bronchospasm
Which of the following decreases the salivary flow? Scopolamine (like atropine) (also use for nausea and motion sickness)
Study group A and B give some agents for plaque control then compare which agent is more effective. Which study is that?
o Clinical trial
Benzodiazepine works by inhibiting GABA inhibitors
Which of the following potentiates anticoagulant activity ?
o St. John’s Wort
o Licorice (Tx of Dyspepsia, indigestion, GERD) and Upper respiratory infections
o Saw palmetto
Note: never prescribe with coumadine, Increased anticoagulant effect of warfarin has been reported
during concurrent ingestion of saw palmetto.
Which of the following images best shows the mid-facial fracture? Commuted Tomography (take axial and coronal
o Reverse towne’s for condyle fracture
o Submentovertex for zygomatic fracture
o Waters (occipito-mental projection) THE BEST VIEW TO EVALUATE THE FACIAL FRACTURE and maxillary sinus
Tx for ClassII furcation involvement (called cul-de-sac)? guided tissue regeneration
o Note:2nd maxillary molar has the worst prognosis in furcation involvement
Know about difference between regenerative surgery and flap surgery?
o regenerative surgery – for regeneration with bone graft
o flap surgery – to get acess for better srp
Pt is on rehab of cocaine. what you prescribe for pain? advil
Disable Pt comes in and not cooperative, how should you act? Permissiveness (give Pt freedom and treat in the way Pt feel
EPT not used in primary teeth
Ankylosed tooth diagnoses best by Percussion test (metallic sound); See on xray a thick lamina dura and no PDL space Base metal alloy
o Cobalt – gives rigidity, strength, hardness
o Chromium – prevents Tarnish & corrosion ,Chromium Oxide film
o Zinc – increases hardness Nickel – ductility
o Tin & Indium helps in porcelain bonding
Cheek biting caused by? Decreasing posterior horizontal overlap Also Posterior teeth placed edge to edge.
o Tx: reduce facial of mand molar
Biting on the corners of the mouth? Reset canine position
lip biting may be due to the following: Large anterior horizontal overlap also in reduced Muscle Tone
Tongue biting caused by: Having posterior mandibular teeth too lingually (increasing posterior over jet)
Two different drugs with same dosages bind to the same receptor and cause same intrinsic affect however they have
different affinities for the receptor: In which aspect these 2 drugs are similar? Efficacy, ED50, Potency
What reverse alcoholism? Antabuse(disulfiram) it inhibits aldehyde dehydrogenese.
o Disulfirum reaction occurs as a result of increased levels of acetaldehyde which gives the “hangover” feeling.
o 5–10 minutes after alcohol intake, the patient may flushing of the skin, accelerated heart rate, shortness of breath,
nausea, vomiting, throbbing headache, visual disturbance, mental confusion, postural fainting, and circulatory
o Metronidazole inhibits this enzyme as well, so don’t drink alcohol and take flagyl
After caries removal sound tissue is on cementum. How do you restore? Build up with GI and place composite
Periapical lesion caused by all except? Occlusal trauma, Abrasion, Maxillary sinusitis
Untreated hyperthyroidism : atropine and excesive amounts of Epi should be avoided
Thyrotoxic crisis signs
o Early symptoms: restlessness, nausa, abdominal cramp
o Later symptoms: high fever, diaphoresis (excess sweating), tachycardia, cardiac decompensation, finally Pt
o Note: Betadine Not for use in children under 6 years of age and in patients with a known or suspected iodine
hypersensitivity. Regular use is contraindicated in patients and users with thyroid disorders (in particular nodular
colloid goitre, endemic goitre and Hashimoto’s thyroiditis).
Antimicrobial to clean wounds
All are the actions of vasoconstrictor in one carpule of local anesthesia:
o Increase depth and duration of anesthesia
o Reduce systemic absorption of LA
What will prohibit mesial drift of tooth toward edentulous area? Proper axio-occlusal contact (opposing and adjacent tooth)
Diabetic Pt under NO2 Tx. Precaution? Medication? Change in food?
In Neurapraxia which one is affected? Axonal membrane, Perineurium, Nothing is affected
o A relatively mild form of nerve injury caused by compression of a nerve.
o It involves no structural damage to the nerve axon, although the myelin sheath may be temporarily disrupted.
o It is characterized by temporary loss of nerve function, tingling, numbness, and weakness.
o It usually heals quickly
Least chance of needle injury? cleaning up, recap, setting up
Which one is less sedative? promethazine(Phenergan), Benadryl (Diphenhydramine)
o Increase in sleep duration chlorpheniramine>promethazine>diphenhydramin.
o Phenergan is widely used to treat nausea/vomiting and comes in an injectable, can only be obtained with a
o Benadryl, commonly used for allergies (itchy eyes, runny nose,sneezing) OTC Radiographic appearance of crater defect?
o An osseous crater defect is a concavity in the crest of
interdental bone confine within facial and lingual walls
Study among smokers and nonsmokers in a period of 6 years (e.g 2000-
2006) to develop disease? Cohort
Which race has a higer F in DMFT index? Whites
Picture of midline of floor of the mouth,the color is NOT blue
o dermoid cyst , other option Ranula which is blue.
Frey’s Syndrome (Auriculotemporal Syndrome)
o Neurological disorder that results from injury or surgery near the parotid glands, damaging the facial nerve.
o Characterized by flushing or sweating on one side of the face when certain foods are consumed.
o Auricutemporal nerve branch of V3, supplyies sensory fibers to preauricular and temporal areas
o Carries parasympathetic fibers to the parotid gland. After parotid surgery or trauma the parasympathetic fibers
may be severed.
o In their attempt to re-establish innervations, these fibers occasionally become misdirected and regenerated along
sympathetic nerve pathway.
Comparision between 2 proportion, which test we do?
o Chi square test measures the association between 2 variables and comparision of groups when the data are
expressed as counts or proportions.
o T-test camparison of mean value of two groups – difference between 2 means
this can be compared between control group vs tx group OR tx A vs Tx B
In which syndrome Pt has multiple odontomas? Gardner’s syndrome and esophageal stenosis syndrome
Which syndrome Pt has calcified falx cerebri, multiple okcs, bifid ribs? – Gorlin Goltz syndrome aka Basal cell bifid rib
Radiographic projection from the base of the skull: Submentovertex projection
o The zygomatic arches stand out like the handles of a jug on this view
Which population has the most number of UNRESTORED caries black
o Untreated caries blacks
o Untreated caries in kids Hispanics
o Fillings white
A lesion that has re-mineralized will be more difficult to penetrate in the future
A class II caries is Apical to contact
Caries exists below critical pH of 5.5
What is the bacteria that is not initially involved in caries but plays an important
o gram positive facultative anaerobe, the # of this species has been used as a
What is Gingival Plaque Index?
o Nominal like mild, moderate, severe
o Ordinal include numbers: like furcation involvement 1,2,3
o Interval like Celcius degree
o Ratio e.g Kelvin degree, or BP measurement(can not be zero), PH, length(can not be negative),weight
o Note:gingival index: both ordinal and nominal Pit and Fissure caries is described as two cones:
o Two bases are pointing toward the pulp
o Two apexes are pointing toward pulp in smooth surface (proximal
o One apex toward the pulp and one base toward DEJ
o Both bases facing DEJ
How is transillumination helpful when examining a kid? Sialolithiasis
o Koplik Spot-A prodromic viral enanthem (rash, cluster of spots) of measles
manifesting two days before the measles rash itself.
o Characterized as clustered, white lesions on the buccal mucosa near each Stenson’s duct (opposite the premolars)
o Pathognomonic for measles
Affected dentin has bacteria present but smaller amounts and can be reversed.
Infected dentin has large amounts of bacteria and needs to be removed because non-reversible
The dentist accidently did not see Occlusal caries and he placed a sealant over it; Will the caries
o Rapid Progression
o Slow Progression
What does caries detector stain? Denatured collagen
o Research indicates that the dye in the caries detector bonds to the denatured collagen which is present in the outer
infected dentin but which is not present in the inner uninfected dentin and normal dentin
Recently placed gold inlay; what is the most common reason for pain afterwards? Fracture of the tooth has to be suspected
o Galvanic shock Sensitivity – choose this if only question says opposing dissimilar metal
For a resin-retained FPD (Maryland Bridge) everything is necessary EXCEPT:
o Wrap around proximal
o Occlusal rest
How is bioavailability measured?
o How much drug is absorbed in the circulation
o Blood to urine ratio
o ***Note: efficacy of drug: level of binding a drug to its receptor
There are two drugs that with the same dosages bind to the same receptor and have same intrinsic affect however different
affinities for the receptor: How are these two drugs the same?
Question asking the definition of antagonist vs. agonist; the answer choices also included partial agonist and partial
o Agonists have intrinsic activity (maximal effect of a drug); efficacy of 1
o Pure antagonists have no intrinsic activity; efficacy of 0
o Partial agonist has an intrinsic value between 0-1
Therapeutic Index = LD50/ED50 or TD/ED and higher therapeutic index is better because wont do as much harm
o A drug with high LD50 and low ED50 has high therapeutic index, therefore relatively safe.
When you stimulate alpha 1 receptors what happens? Vasoconstriction
o Prazosin is a selective α1 blocker used to treat HTN, heart failure, and benign prostate hypertrophy How will Propranolol (non-selective beta blocker) affect the following?
o Ephedrine induced mydriasis (contraction of papillary muscle)
ephedrine is Sympathomimetic drug, .with anesthesia causes hypotension. it suppress apetite
o Phynylephrine-induced hypertension
alpha 1 receptor agonoist
Do benzodiazepines have a anxiolytic effect? in moderate doses ANTIANXIOLYTIC and high doses is SEDATIVE
Atropine contraindicated for nursing mothers and patients with Glaucoma
Zyban (bupropion) is used for smoking cessation.
Sodium Thiopental rapid-onset short ultra acting barbiturate(IV) for general anesthesia- for Desensitization
What receptors do benzodiazepine act on? GABA
Rebound effect when you discontinue med, it brings back the same symptoms that it relieved, stronger than before;
Must withdraw gradually to prevent this
o Benzos rebound anxiety and insomnia
o Eszopiclone and Zolpidem rebound insomnia
o Triazolam (short-acting) daytime rebound anxiety, metallic taste, perceptual disturbances
o Methylphenidate or Dextroamphetamine Rebound stimulatory effects psychosis, depression and a return of
o SSRIs rebound depression, anxiety, panic attacks
o Clonidine and Guanfacine (alpha-2 adrenergic agents) rebound hypertension
What is the most common type of seizures found in children?
o Grand mal
o Juvenile absence seizures
o Simple partial seizure if there was not option of Febrile go with this
o Febrile seizure:
A convulsion that occurs in association with a rapid increase in body temperature.
Common in infants and young children and, fortunately, are usually of no lasting importance.
Febrile seizures are the most common type of seizure seen in children.
Two to five percent of children have a febrile seizure at some point during their childhood.
Tricyclic Antidepressants ( Amitriptyline, Imipramine, Trimipramine) inhibit the reabsorption (reuptake) of serotonin and
norepinephrine by brain cells. To a lesser extent, TCAs also inhibit reabsorption of dopamine. Therefore more can reach
Lithium- bipolar disorders manic phase mainly
What do you often need to supplement with diuretics? Potassium
Potassium-sparing Diuretics : Spirinolactone, Amiloride, Triamterene
Which of the following ACE inhibitor? ends in -PRIL
Which of the following drugs causes gingival hyperplasia? Calcium channel blocker : Nephidipine , Cyclosporines
Patient comes in and is on Coumadin, what do you do? Do not need to stop medication
What drug is used for ANUG?
o Tx: topical, then remove pseudomembrane, debride, CHX
o Systemic Abts only if there is lymphadenopathy and/or fever
Child comes in with an oral infection and is NOT allergic to Pen. What do you prescribe? Penicillin VK
What drug has cross allerginicity with Penicillin? Cephalosporin- both have Beta lactamase ring.
o If pt has allergic to penicllin then pt has allergy to cephalosporin
What is the effect of Tetracycline? BACTERIOSTATIC on protein synthesis 30s
What is the effect of Penicillin and Cephalosporin? BACTERIOCIDAL cell wall synthesis
Which drug should not be used with someone with Liver damage? Tylenol
Effects of histamine and that it is derived from histidine? histamine is bronchospastic and vasodilator
o Cimetidine- H2 Blocker (reduce the acid secretion) for GERD (gastro esophageal reflux disease) Which drug would inactivate the latter? Antacids- Tetracycline
o note: Do not take iron supplements, multivitamins, calcium supplements, antacids, or laxatives within 2 hours
before or after taking tetracycline. Antacids and milk reduce the absorption of tetracyclines.
In a gold MOD onlay, how are the axial pulpal walls? Converging
When pouring up a cast which of the following has the least wet ability with a slurry water?
o Polyether hydrophilic, no byproduct
o Polysulfide byproduct H2o
o Condensation Silicone poor wet ability, byproduct ethyl alcohol
o Irreversible Hydrocolloid
A patient with stable posterior occlusion and only missing maxillary incisors you are making a bridge from #6-#11. What do
you need to send to the lab?
o Semi adjustable articulator in CR with facebow, lateral records, and incisal guide
o Semi adjustable articulator in MIP with facebow, lateral records, and incisal guide
o A simple nonadjustable articulator in MIP
What is the purpose of a facebow to set the Maxillary arch to the
o Terminal hinge axis
o Mandibular arch
When a person is in physiological rest position freeway space which is 2-3mm
Angular chelietis is caused by all of the following except: Increased VDO
o Note : Nutritional deficiencies- most common
What is the function of Hex on implants? b. anirotational
If there is an implant that is 4mm in width at least how many mm does the labiofacial bone need to be? 6mm
How does titanium of an implant help in osseointegration? Forms Titanium oxide layer
What is the cause of cheek biting in a complete denture? Not enough horizontal overlap
A post palatal seal (post dam) is used for Polymerization shrinkage of acrylic
Indirect retainer is used to prevent distal extension dislodgement away from the tissue TRUE
The flexibility of a clasp is determined by everything except? Depth of undercut
What is the strongest type of metal a FPD can be made from? Type 4
“Crown and Bridge” Gold Alloys (Non-ceramic)
∗ Type I (soft) – min. 83% Noble Metal
∗ Type II (medium) – min. 78% Noble Metal
∗ Type III (hard) – min. 78% Noble Metal
∗ Type IV (extra hard) – min. 75% Noble Metal
∗ Type I – small inlays; very slight stress
∗ Type II – inlays, thick 3/4 crowns, complete crowns
∗ Type III – thin 3/4 crowns, abutments, pontics,
complete crowns, short-span FPD’s
∗ Type IV – RPD Frameworks, long span FPD’s Kerr(Combination) Syndrome
o Destructive changes in hard and soft tissues of patients with complete maxillary denture opposing an unstable
bilateral free-end mandibular partial denture
o The long-term result is extrusion of the remaining mandibular anterior teeth and the alveolar process
surrounding them with loss of posterior mandibular bone.
o The plane of occlusion becomes reversed.
o Papillary hyperplasia of the hard palate develops. Flabby tissue
o The premaxilla becomes ATROPHIC as a result of the force exerted on this soft bone during occlusion.
o The maxillary tuberosity develops HYPERTROPHY, limited interarch space.
o If not corrected, the unstable occlusion can result in progressive posterior mandibular atrophy leading
to greenstick fractures.
What do a veneer and all ceramic crown have in common? Rounded internal
A resin bonded FPD in not seated all the way or is not stable. What could be the reason? microleakage
Veneer which is bonded with resin. Patient comes back after a month or so with a dark stain near margin Microleakage
When you want to seat a crown, the following contribute to it fitting passively EXCEPT:
o Die spacer
o Increasing gypsum investment material
o Fit checker
What is an active screw (post) vs. inactive post(cemented)?
o A smooth-surfaced post although less retentive, transmits the least amount of force to the root structure.
Passive, in that they simply lie within the post space after being cemented
o Threaded posts actively engage the internal walls of the root canal as they are screwed in
The most retentive by far but produces such a force on the brittle root structure that they are
contraindicated in most situations
Know about metamerism and how it can affect color based on the light source? How do you prevent it?
o The quality of some colors that causes them to appear differently under different light sources.
o For example, two color samples might appear the same in natural light, but not in artificial light.
If a kid comes in and has trauma to the face and the IA is damaged, where did the kid get hit? Angle of mandible
o IN KIDS: most mandibular fractures occurred at the condyle (55%), followed by the parasymphysial region (27%),
then the body (9%), and angle (8%)
o IN ADULTS: Condyle : 29% > Angle 24.5%>Symphysis 22%> Body 16%> Ramus 1.7% > Coronoid 1.3%
Know the Maximum dose of lido with epi is 7mg/kg for an adult
o Note: text says 5mg/kg for (According to Malamed 4.4mg/kg) and 7mg/kg for articaine
Adding a vasoconstrictor to local anesthesia does all the following EXCEPT:
o Decreases rate of absorption
o Increases duration of action
o Minimizes toxicity and helps homeostasis
o all of above
Max amount of Nitrous Oxide for a kid
o 40 %
o 70% Adult
The maximum amount of nitrous on the machine safety hinge is 70%
What does band and loop NOT do? Does NOT create a vertical stop
Patient with white palate Patient wears denture all night What is the average pulse rate for a child? 100+
o Newborn to 1yr 100-160 1yr-6yr 60-140 6yr-11yr 70-100 11yr + 60-100
Loss of which tooth important in retaining space Primary second molar
What do you do if mandibular central incisor is erupting lingually?
o extract primary teeth and use appliance to move forward
o Leave it was an option
o note: if primary retain more than 8 yrs of age then extract and place appliance to reposition permanent
Which of the following is most likely to be interpreted as toothache by Pt?
o maxillary sinusitis can cause pain or pressure in the maxillary (cheek) area (e.g., toothache, headache)
o tmj dysfunction
o otitis media
Of the following which is most likely to have reffered pain?
o a.acute apical periodontitis – acute apical periodontitis can be pinpointed to the exact tooth
o b.irreversible pulpitis
o c.phoenix abscess – is acute inflamm reaction occurs on an already lesioned tooth & is usually non vital so not refrd
when pulp stone presents on radiograph
o a.normal pulp
o b.pulp has been injured in the past but has recovered
o Some authors believe that pulp calcification is a pathologic process related to various forms of injury, whereas
others regard it as a natural phenomenon.
lateral periodontal abscess is best differentiated from the acute apical abscess by? pulp testing
Radiographically the acute apical abscess
o is generally of larger size than other lesions
o b.may not be evident
o has more diffuse margins than other lesion
Epidermology question :
o A study is done to determine the affectiveness of a new antihistamine. To do this, 25 allergic pts are assigned to
one of the two groups, the new drug (13 pts), placebo (12 pts) . The pts are followed for 6 months . This study is
called clinical trail; (assigned or give is the clue )
o Study among smokers and nonsmokers in a persons of 6 years (e.g 2000-2006) to develop disease? cohort
Which articular disease most often accompanies Sjögren’s syndrome?
A. Suppurative arthritis.
B. Rheumatoid arthritis.
C. Degenerative arthrosis.
D. Psoriatic arthritis.
E. Lupus arthritis.
o May develop years after the onset of an associated rheumatic disorder, such as rheumatoid arthritis, systemic
lupus erythematosus, scleroderma, primary biliary cirrhosis etc. (secondary Sjögren’s syndrome)
Contraindication for max molar with class 2 furcation? hemisection w/ crown
o hemisection mand molar Mandibular molars to treat Class II or III furcation invasions
o Root amputation max molar
What substance has corrosion resistance in pfm metal? Cobalt-chromium and are more rigid in comparison to Ag and Pd
o Base metal alloys (non-precious metals) are based on active metallic elements that corrode, but develop corrosion
resistance via surface oxidation that produces a thin, tightly adherent film, which inhibits further corrosion.
o Base metal alloy advantages are principally found only in their strength and low density. How does fluoride play role in decreasing caries? makes enamel stronger
o The topical effect of constant infusion of a low concentration of fluoride into the oral cavity is thought to increase
remineralization of enamel.
o Fluoride ion inhibits the enzymatic production of glucosyltransferase inhibits glycolysis
o The incorporation of fluoride into the enamel hydroxyapatite crystal producing fluorapatite which is less soluble in
catabolic acids produced by oral bacteria.
o Prevent caries by directly interfering with the growth and metabolism of organisms such as streptococcus mutans
that produce acids responsible for decay.
What sleep med do you give to a pt the night before a dental appt? Diazepam?
Value is the single most important factor in shade selection. Intensity is included in the term value.
o Stains are metallic oxides that fuse to the porcelain during a predetermined firing cycle.
o Drastic changes of the hue (color or shade) are often impossible.
o Orange stain is the most often used to change the HUE. Staining a porcelain restoration will reduce the VALUE (as
will using a complementary color). It is almost impossible to increase the value.
o CHROMA can be successfully increased by the use of stains, particularly in the gingival area.
Tooth #30 is endo tx with restoration, pt is in pain when he bites, why? cracked tooth
o Resorbable sutures evoke an intense inflammatory reaction. Plain gut or chromic gut are NEVER used for suturing
the surface of a skin wound.
o When suturing an extraction site in the anticoagulated patient, a non-resorbable suture is recommended.
o Suture size is based on strength and diameter. This system uses “0” as the baseline, average size suture.
o As suture diameter decreases, “0” are added or numbers followed by a “0” (for example, 000 and 3-0 are the same
o Because suture material is foreign to the human body, the smallest-diameter suture sufficient to keep the wound
closed properly should be used.
What meds do you take for asthma? Bronchial relaxation, airway dilation
o Beta agonists – albuterol, salmeterol metaproterenol
What does sodium hypochlorite do? Disinfectant germicidal solvent action
o 5.25% solution provides excellent germicidal solvent action
What is a sign of ectodermal dysplasia? retained teeth
o Hereditary; M>F; from ectoderm; abnormal development of the skin and associated
structures (hair, nails, and teeth, and sweat glands
o Common clinical findings include hypothrichosis (decrease in hair), anhidrosis (no sweat
glands, leading to heat intolerance), anodontia or oligodontia (complete or partial absence
of teeth), depressed bridge of nose, lack of salivary glands
o child appears much older than what he or she is.
All these meds decrease saliva except? Pilocarpine
o Pilocarpine (Salogen) is used to stimulate salivary flow in patients suffering from
xerostomia due to radiation therapy in the treatment of head and neck cancer.
o Pt has round bump on midline of floor of mouth, what is it? ranula
o The ranula, a true retention cyst, characteristically occurs in the floor of the mouth and is unilaterally located.
Patient is getting front tooth fixed … whats the purpose of using an incisal guide table?
o Acrylic resin reproduces the surface of teeth (lingual concavity/incisal edges) that have a direct influence in guiding
o Through ALL EXCURSIVE movements incisal guidance plays as important a role as the temporo-mandibular
articulation in establishing a functional and harmonious occlusion, as much on the anterior teeth as the posterior
Which is least likely to occur with occlusal trauma? gingivitis On the trauma of occlusion —–gingival reccetion
o Radiographic signs of trauma from occlusion:
Widening of the periodontal ligament space
Sometimes thickening of the lamina dura
Angular bone loss and infrabony pocket formation
o Trauma from occlusion is reversible,
o Periodontal pocket formation is an inflammatory lesions and are not caused by occlusal trauma or bruxism
Most common characteristic of cherubism? bilateral jaw swelling
Normal occlusal wear shows what? Attrition
What substance has corrosion resistance in PFM metal? chromium
What sleep med do you give to a pt the night before a dental appt? ambien CR (zolpidem tartrate)
19 yo girl has halatosis, interproximal recession and bleeding … because? ANUG
Best way to suture an incision? interrupted suture
Best way to determine outcome of disease?
o Med history of the patient (If the lab test was choose may be that)
o ESR LAB result
Best reason to do an onlay? cuspal coverage
What is a sign of ectodermal dysplasia? anodontia, aligodonsia
Mechanism of opiods? attach to MU receptors
Main advantage of using GI cement? Fluoride Release
Why don’t you use acidic F with GI?
The drug enforcement agency is concerned with what? potential for abuse
Where are you most likely to perforate on a maxillary central incisor? Buccal
Dentist restored tooth and accidentally left caries … what happens to caries? caries is arrested
Where are the primate spaces?
Osteoporosis is associated with which of the following diseases? Hyperparathyroidism
Do not give which medication to lactating female? codiene and tetracycline
Two things that account for a successful posterior composite restoration? type of resin and type of prep
What is the initial step when you have an acute perio abscess? incision and drainage not Abts immediately
How do you repair a porcelain veneer with composite? microetch, etch and silane
How to do treat porcelain veneer before you cement it? Which is the best systemic anti-fungal? ketoconazole, and others are amphotericin B and fluconozole
conical shaped caries w/ broad base with apex towards pulp is commonly seen in? smooth caries
best clinical determinant of root caries
a. sensitivity to cold
b. sensitivity to sweets
c. soft spot on tooth – visual and tactile methods are used for detect caries
40 yo pt w/ all 32 teeth. No cavities. Has stain & catch in pit of molar. what do you do? a. watch and observe
12 yo kid w/ carious lesion on tooth #9 that shows pulp exposure w open apex… what do you do?
What is most numerous at site of chronic inflammation? macrophages
Main difference and advantage of using GMT instead of Enamel hatchet?
a. bi-angled cutting surface
b. angle of the blade
c. push/pull action instead of
Tooth #30 has huge MOD amalgam and is deep. Hurts pt when he eats french bread. what is the cause? a. root fracture
When do you do calcium hydroxide therapy in an avulsed tooth? wait 2 weeks
Chronic periodontitis most likely found in?black males
What branch off facial nerve gets damaged the most during TMJ surgey? temporal
When pt has mouth open, what oral structure would inhibit from capturing buccal flange when taking impression?
c. coronoid process
Note: Masseter an buccinator are not functioning during opening of mouth. coronoid process has direct involvement in max
molar buccal area during mouth opening and can interfere with impression taking.
surgical dressing is indicated for what? protect the wound
You see 3 mand incisors w/1 wide tooth. x-ray shows tooth has 2 canals. what condition is it? fusion
b. Gemination c. Concrescence d. Dilacerations
Praising, smiling and congradulating is what type? social reinforcement
o Positive reinforcement:
Social reinforcement: Praising, smiling, ….
No-Social (Token) reinforcement: Toy, Token
What do you do when pt on hospital bed has allergic reaction to iv antibiotics?
a. take off iv antibiotics
b. give epi
What are you most likely to see in a kid who has a mandibular canine tipped facially? gingival recession
Why do you do triangular access on incisors (max central inccisor?)
a. to help with straight line accessb. help expose pulp horn
c. to follow the shape of the crown
Metastasis to the oral cavity is most likely to end up where?
e. floor of mouth
How do you make a crown narrower? move line angles more facially
Not enough room when edentulous pt closes. what do you do? adjust mandibular denture
a. tuberosity reduction
c. adjust maxillary denture
What do x-rays depict when viewing osseous craters … or something? underestimates bone reduction
Unconscious diabetic is treated with what?
a. subcutaneous sugar
b. give him Orange Juice
c. give him insulin injection
d. 50 % dextrose solution
e. IV sugar solution or IM glucagon pt should wake up within 15mins
Most common place of recurrent caries in a class 2 composite? Gingival
What type of bond is composite on tooth structure?
a. chemical bond
b. mechanical bond
c. organic coupling
What occlusion class will it be if you have an ANB of -8 degrees? class III
Trauma to max incisor, x-ray shows no pulp, asymptomatic and no endo lesion. what do you do? Observe
Main advantage of doing direct composite over composite onlay? better marginal adaptation
Patient trouble keeping her lower complete denture in because of a low ridge, how to fix this problem?
a. ridge augmentation
b. place anterior implants
c. alveolar bone sectioning
Mand complete dentures must be extended how far distally?
a. just anterior to retromolar pad
b. must sit on the retromolar pad
c. must be 5mm beyond the retromolar pad
Pt says “your fees seem high” … how do you respond? “my fees are comparable to geographic area”
You are extracting a 2nd mand premolar… what injections do you give? lingual, buccal and IA
Most common condition that occurs in the dental office? Syncope What do you do? Pt has some condition that had blue sclera … what disease does the pt have?
a. osteogenesis imperfect
b. marfan’s syndrome
o A chest that sinks in or sticks out — funnel chest (pectus excavatum) or pigeon breast (pectus carinatum)
Highly arched palate and crowded teeth
Joints that are too flexible
Movement of the lens of the eye from its normal position (dislocation)
Small lower jaw (micrognathia)
Spine that curves to one side (scoliosis)
Thin, narrow face
Pt’s max denture made her tissue inflamed and weird, you decide to make her a new denture after?
a. you reline her old denture
a. you place tissue conditioning material in her old denture
c. you surgically remove her tissue
You inadvertantly extract the wrong tooth … what do you do?
a. replant it asap
b. do rct and then replant it
c. wait until next appointment to replant
d. place implant asap
You extract a molar and bone fragments come out with it… what do you do?
a. take out bone fragments and make sure its all gone
Flap back the tissue and see the entire area
Which does not show empathy to the patient?
b. sharing personal experiences
c. reflection and showing understanding
Patients with autism will usually show?
b. heightened sense of lights and sounds
o Children with autism are easily overwhelmed by sensory overload. This can cause “stimming” (flapping of arms,
rocking, screaming, etc). T are hypersensitive to loud noises, sudden movement, and things that are felt.
A gingival bevel can be placed with all, except?
a. sharp fluted instrument
b. enamel hachet
c. Gingival margin trimmer
d. thin diamiond bur
In what situation would a pt need to premedicate?
a. mitral valve prolaspe
b. prosthetic heart valve
c. bicuspid valve disease
d. rheumatic heart disease
Proximal resistance form of amalgam restoration comes from what?
a. convergence of buccal/lingual wall
b. retention grooves in axiobuccal/axiolingual walls – for proximal resistance
c. Dovetail – provides retention form Stages of anesthesia
o Analgesia /Amnesia
Begins with unconsciousness and ends with loss of eyelid reflex, purposeless movements and hyperreaction, dilated pupils, reflex vomiting, tachycardia and hypertension
o Surgical anesthesia – working in this stage
o Medullary paralysis: Cessation of respiration
Denture sore throat : palatoglossal and superior constrictor of pharynx is inflammed (pt. cannot swallow)
Port-wine stains associated with sturge-weber
Cephalosporins – beta-lactam family, anaerobic.
A prodrug is a drug made active by metabolism.
How much reduction veneer in the middle 1/3 of facial? 0.5mm
What does vertical pull headgear with chin cup do?
o correct vertical and a wide range of facial myofuntional
problems, such as open bite.
o Headgear holds the mouth closed continuously, reducing interdental habits and tongue protrusion.
o Intrusive force on the molars is increased.
o This appliance can quickly change a mouth breathing habit to nose breathing
o Know which kind of head gear is for maxillary vs mandible
What is an open-ended question?
o Allows freedom of response
New patient comes into office; 1st visit?
o Full exam, probing, med hx, impressions.
Why amalgam fails. Bad prep design.
What drug causes dilation of eye or midriasis?
o Atropine, antimuscarinic
How soon do you correct a noticeable crossbite
Most difficult part of seting denture teeth?
What causes greatest occlusal wear? Porcelain
o Amalgam is the strongest to wear
What increases in pulp with age? Fibroblasts
Width of Keratinized gingiva is : Free gingiva + attached gingiva
Bone density changes : Subtraction Radiography
Occlusal sealants succeed by change Pt susceptibility
Which of material cause less allergy? 1-Lido 2-Procaine 3- epi
The most common between five? 1-Papilloma 2-Rhabdomyoma 3-Leiomyoma 4-Lymphangioma 5-Neurofibroma
The Most connective tissue tumor : Fibroma (Not true tumor) TMJ pain are mostly related to: 1- VII 2- V3 3- V2 4-VIII
What is the most common site of new cases of oral cancer? 1-Palate 2-Tongue 3-Floor of mouth 4-lip
Major mechanisms for the destruction of osseointegration are
o Related to surgical technique
o Similar to those of natural teeth
o related to implant material
o related to nutrition
A painless, well-circumscribed radiolucency and radioopacity in the posterior mandible of 11yrs old boy . what is the
differential diagnosis Ameloblastic fibro -odontoma
(If age above 50 ,its Paget’s disease also remember Ameloblastoma occurs in oldies)
“Ghost teeth ” Regional odontodysplasia (only one side of mouth affected)
Where do we find most caries? 1- occlusal2- Proximal
Dermoid cyst Occurs in the midline in the floor of the mouth
The Stafne defect is a depression of the mandible on the side nearest the tongue. It was previously known as a latent bone
cyst and static bone cyst but is now known as a pseudocyst. The depression allows for the presence of a salivary gland
Which of the following resembles an epiphysial growth plates? Synchodrosis
Most beneficial aspect to brush tongue is reduce? Halotosis
What is diff of 330 and 255 bur? 255 is longer
The main reason of breaking of RPD clasp? High Mudule of Elastisity Work Hardening
HIV with recurrent herpes labialis? Acyclovir
Which medication is controbuting to Insomnia, lack of apetite, and abdominal pain? Dextroamphethamine
o Stimulant that promotes NE release in CNS; used for narcolepsy, ADHD,
How far the brush and floss goes in sulcus? Brush 1mm , floss 2mm
Is Propoxyphene (opiod) contraindicated in pregnant women? In 3rd trimester; WAS WITHDRAWN FROM MARKET
What is the best to clean implant? a-water pick b-tooth pick c-floss d-proxibrush
What is hypertelorism? eyes too far. Seen in Gorlin and Down syndrome
What to give to pt with allergy to codeine? Propoxyphene WITHDRAWN FROM MARKET
What is 4 -7 years old afraid of ? a- pain b-unknown c-dental chai r d- sepration from parent
ADHD is most common in? boy Boys have higher rates of ADHD than do girls.
Former smoker has less chance of periodontitis compare with current smoker. Examination reveals a soft, fluctuant, tender swelling in the middle of the hard palate. The teeth test vital. Radiographs
reveal a radiolucent area projected between the roots of the maxillary central incisors. The cyst that represents the most
likely diagnosis is a
o Nasopalatinal cyst
o Nasiolabial cyst
o Pleomorphic adenoma
o globulomaxillary cyst
The pulpal floor is perforated during access preparation. The best course of action is to
o CONTINUE RCT, REPAIR THE PERFORATION AT A SUBSEQUENT APPT IF ASSOCIATED PATHOSIS DEVELOPS.
o REPAIR THE PERFORATION, SCHEDULE PT FOR ANOTHER APPOINTMENT TO FINISH RCT
o REPAIR PERFORATION, INITIAL CLEANING/SHAPING SCHEDULE PT FOR FINISHING RCT
Factors that affect the prognosis of perforation repair include
o location of perforation
o time delay before perforation repair
o ability to seal the defect
o previous contamination with microorganisms
Immediate repair is better than delayed repair, because delay can cause breakdown of the periodontium, resulting in
endoperiodontal lesions that are difficult to manage, and elimination of microbial contamination of the defect and proper
sealing are critical to success
Tx of ANUG: ultrasonic debridment, oral rinse chlorhexidine or hydrogen peroxide,
o abt tetra and metro only if lymphadenopathy involved
o tx of juvenile periodontitis: abt alone or with sc/rp
Which of the following drugs best reverses the effects of benzodiazepines?
o Naloxone opiod reversal agent
o Midazolam bdz
o Aminophylline relaxes respiratory smooth muscle
o Physostigmine anticholinergic toxicity antidote; parasympathomimetic inhibits Ach-ase
Following flap surgery, new junctional epithelium can form on either cementum or dentin. Junctional epithelium is
reestablished as early as one week.
o Both statements are TRUE.
o Both statements are FALSE.
o The first statement is TRUE, the second is FALSE.
o The first statement is FALSE, the second is TRUE
Ostectomy is a procedure that involves the
use of an autograft.
use of an allograft.
use of a contiguous graft.
removal of tooth-supporting bone.
Which of the following drugs is administered orally to treat vaginal candidiasis?
Clotrimazole (Mycelex® Troche)
Nystatin (Mycostatin® Test Cavity
o The test cavity method for assessing pulp vitality is very seldom used today.
o Used only when all other test methods are deemed impossible or the results of the other tests are inconclusive
ex. when the tooth suspected of having pulpal disease has a full coverage crown.
o If no sound tooth structure is available to use a bridging technique with the electric pulp tester and cold test
results are inconclusive, a small class I cavity preparation is made through the occlusal surface of the crown.
o The patient is not anesthetized while this procedure is performed
o If the patient feels pain once the bur contacts sound dentin, the procedure is terminated and prep is restored.
This signifies that there is some viable nerve tissue remaining, not that the pulp is totally healthy.
o If the patient fails to feel any sensation when the bur reaches the dentin, it is a good indication that the pulp is
necrotic and root canal therapy is indicated.
Treacher Collins syndrome
o genetic disorder downward slanting eyes, micrognathia, conductive hearing loss, underdeveloped zygoma,
drooping part of the lateral lower eyelids, and malformed or absent ears.
Turner tooth—-Infection and trauma
o Diabetes insipidus
o Bone lesions (Langerhans dis)
Oral signs of hand-schuler-christ. = bad breath, sore mouth, loose teeth
o lesion are sharply punched out radiolucency and teeth appear as FLOATING IN AIR
Amelobelastoma and myxoma—- Hony comb-soap bubble
Paget’s: Billateral maxilla——Cotton wool
Gorlin syndrome or Basal Nevus Cell Syndrome: Bifid rib, OKC, BCC
Gardner Syndrome: multiple facial osteoma, Odontomas, hyperdontia, GI polyps w/ potential for colon carcinoma
Erythema Multiforme: young men, viral or drug, sudden onset, vermilion, intraoral not on gingiva, (target) bulls eye on
hands and feet
o Steven’s Johnson = severe form of Erythema Multiforme (affects eyes, mouth, and genitalia)
PDL widening: Hyperparathyoid, osteosarcoma and scleroderma (Trismus, widened PDL spaces, mask-like face, Excess type I
& III collagen)
Eagle Syn: Stylohyoid ligament calcification
Zoster = shingles = unilateral
Multiple neuromas on lips, tongue or palate may indicate that pt has MEN III adrenal pheochromocitoma
Tumors of Endocrine glands esp. Medullary carcinoma of thyroid (can cause death)
Actinic chelitis—> SCC
Oral hairy leukoplakia & Mono, Burkit lymphoma all caused by EBV; nasopharyngeal carcinoma
Kaposi sarcoma by herpes 8
Garre’s (prolifrative periostitis) and Ewing sarcoma are both onion skin
Desquamative gingivitis includes pemphigoid, pemphigus and erosive lichen planus To change from long scale intensity (low contrast) to short scale intensity (high contrast) but maintain image density, the
operator should decrease kVp and increase mAs
Auriculotemporal syndrome (Frey syndrome) Often after parotid gland surgery
Periapical Cementoosseous Dysplasia OR periapicalcemental dysplasia OR periapical cementoma:
o This is a relatively common phenomenon that occurs at the apex of vital teeth.
A biopsy is unnecessary because the condition is usually diagnostic by clinical and radiographic features.
o Women, especially black women, are affected; appears in middle age (around 40 years) .
o The anterior mandible is far more commonly affected than other areas.
More often, the apices of two or more teeth are affected.
o No Tx
Glossodynia: tender or painful tongue
Glossopyrosis: burning sensation of tongue
o also known as true cementoma, is a rare benign neoplasm of cementoblast origin.
o It occurs typically before 25 years of age; no gender predilection.
o It is more often seen in the posterior mandible
o It is intimately associated with the root of a tooth, and the tooth remains vital.
o Cementoblastoma may cause cortical expansion and, occasionally, low-grade intermittent pain.
o opaque lesion, usually surrounded by a radiolucent ring representing the periodontal ligament space
o TX: cannot be removed without sacrificing the tooth.
Bone relief is typically required to remove this well-circumscribed mass.
Recurrence is not seen.
Warthin’s Tumor : Swelling in neck , more diffused
Infectious Mononucleosis : Swelling in neck, more rounded and localized
Osteosarcoma : Radiographic sunburst appearance
Fibrous displysia: Ground Glass Appearance
Candidiasis Pt has both burning sensation of tongue and altered taste sensation.
Sjogren’s syndrome does NOT have burning sensation of tongue but has altered taste sensation.
o Pt complains of difficulty wearing the denture and shows cervical caries.
o Tx of sicca (dry mouth, eye) in Sjogren syn is pilocarpine
Multiple myeloma: Bence jones proteinuria, punched out lucencies
8-bit digital image would have 256 shades of gray
Most common salivary gland benign major or minor : Pleomorphic adenoma
Most common malignant minor :Adenoid cystic carcinoma
Most common malignant major: Mucoepidermoid carcinoma
Recurrance: OKC, RanulaI HAD MANY QUESTIONS ON THIS STUFF:
Symptomatic Irreversible Pulpitis
o intermittent or spontaneous pain, temperature changes
o Advanced thickening of the periodontal ligament
o remains untreated the tooth will eventually succumb to necrosis
Asymptomatic Irreversible Pulpitis
o Left untreated, the tooth may become symptomatic or even necrotic.
o Endo treatment should be performed as soon as possible
o Internal resorption and pulp polyp are examples.
o will not respond to electric pulp tests or to cold stimulation.
o Pulpal necrosis may be partial or complete and it may not involve all of the canals in a multirooted tooth
o After the pulp becomes necrotic, bacterial growth can be sustained within the canal.
o infection extends into pdl space may become percussion + or exhibit spontaneous pain.
o thickening of the periodontal ligament space to the appearance of a periapical radiolucent lesion.
o The tooth may become very hypersensitive to heat relieved by cold..
acute periradicular periodontitis
o very painful response to biting pressure or percussion; widened PDL
chronic periradicular periodontitis
o no clinical symptoms; will exhibit a periradicular radiolucency
o This tooth is generally not sensitive to biting pressure but can “feel different” to the patient upon percussion.
acute periradicular abscess
o very painful to biting pressure, percussion, and palpation.
o will not respond to any pulp vitality tests and will exhibit varying degrees of mobility,
o widened periodontal ligament space or periradicular radiolucency.
o Swelling will be present in the mucobuccal fold and facial tissues adjacent to the tooth.
o The patient will frequently be febrile, and the cervical and submandibular lymph nodes will be tender to palpation.
chronic periradicular abscess (suppurative periradicular periodontitis)
o will not generally present with clinical symptoms.
o tooth will not respond to pulp vitality tests and the radiograph or image will exhibit a periradicular radiolucency.
o generally not sensitive to biting pressure but can “feel different” to the patient upon percussion.
o will exhibit intermittent drainage through an associated sinus tract.
Haloperidol is used for the tx of schizophrenia/tourette syndrome
lesion that occurs from tooth flexure? abfraction
what liquid is found in glass ionomer? polyacrylic acid
infection from mandibular premolars most like to drain into? Sublingual area
o mandibular Molars submandibular area
The lingual wall of mandibular teeth is most easily perforated when preparing an access opening due to the lingual
inclination of these teeth.
implant placement is placed where? lmm apical to adjacent cej
Where are the primate spaces? max= between lateral & canine & mand= between canine & 1st molar
osteoporosis is associated with which of the following diseases? Hyperparathyroidism
do not give which medication to lactating female? codiene
o This medication may be harmful to an unborn baby, and could cause breathing problems or addiction/withdrawal
symptoms in a newborn. The significant advantage of a nickel-titanium file is its unique ability to negotiate curvatures during continuous rotation
without undergoing the permanent deformation or failure that stainless steel files might incur.
o A significant risk during NiTi rotary instrumentation is instrument separation. When the instruments are stressed
over time, the crystalline structure can change or deform making the files weaker and more prone to reaching
their elastic limit.
you separate an endo file 3mm from the apex and obturate above it… which case will show the best prognosis?
o vital pulp w/ no periapical lesion
o vital pulp wI periapical lesion
o necrotic pulp wI no periapical lesion
o necrotic pulp wI periapical lesion
Least effective sedative?
o diphenhydramine (benedryl) sedating-type antihistamines; causes significant xerostomia
o nitrous oxide
o N2O (weak anesthetic is used agents, such as thiopental, to produce surgical anesthesia)
o Diphenhydramine (Benadryl) is representative of the
Which is the best systemic anti-fungal? ketoconazole (yes)
Conical shaped caries w/ broad base with apex towards pulp is commonly seen in?
o root caries (same as smooth caries)
o smooth caries (look like v w/ apex towards pulp)
o pit/fissure caries (inverted ‘v’ with apex towards occlusal)
Best clinical determinant of root caries
o The most commonly used clinical signs to describe root caries utilized visual and tactile (surface texture)
o There are no reported clinical symptoms of root caries although pain may be present in advanced lesions.
12 ylo kid w/ carious lesion on tooth #9 that shows pulp exposure wI open apex… what do you do? apexiflcation
How enough space provided for eruption of permanent anterior mandible? primate space
Dentist charge for crown is $500. Insurance only covers $400. Dentist waves copayment($100) but still tells insurance he
charges $500 for crown. what this action called?
o a.Down codding
o Over billing
o c.Price fixing
How many canal 2nd max primary molar has? 4
o Max first molar 4 canals
o Mand first molar 3 canals (25% 4 canals)
o Mand second molar 3 canal (25% 4 Canals)
Early childhood caries is highest in? b. Hispanic
Pt with cafe au lait spots and some problem with iris (lisch nodules)…does not mention about GI polyps
neurofibromatosis characteristics: lisch nodules: traslucent brown-pigmented spot of iris
axillary freckling (crowe’s sign), enlargement of fungiform papilla, enlargement of mandibular foramen
o b.peutz jegher
o c.jaffe syndrome
Dentist reviewed of his existing 1000 Pt charts. Noticed among these 1000, last year 200 had periodontitis but in a year
after 300 have periodontitis, how much is the incidence?
o c. 0.2 what kind of study is above? descriptive
differential diagnosis of periodontal abscess and periradiculal abscess?
o b.vitality test
implant success rate after 10 yrs a. 85% is 5 years b.95% c 80%
what percentage of US population have access to fluoridate water? a.45% b.65% (42 states) c.85%
You are the 8th dentist, pt did not like none of the previous. Likes you and will bring all his family. Pt suffers from?
o paranoid–no trust
characterized by paranoia and a pervasive, long-standing suspiciousness and generalized mistrust of
personality disorder characterized by a lack of interest in social relationships, a tendency towards a
solitary lifestyle, secretiveness, and emotional coldness
What is most odontogenic cyst that could end up to ameloblastoma? Dentigerous
A primordial cyst is a devleopmental odontogenic cyst. It is found in an area where a tooth should have formed but is
missing. Primordial cysts most commonly arise in the area ofmandibular third molars.
o Under microscopes, the cyst looks like an odontogenic keratocyst.
Kid 5 years with systemic ds came to control plaque- sodium fluoride or chlohexidine
o Eye Only alpha1
o Blood vessel Alpha1,2, B2
o Lung Only B2
o Heart B2, B1
o Autosomal recessive, impaired T and B lymphocyte
o reduced killing of bacterial and fungal infection
o advanced periodontitis in primary and permanent dentition related to AA
o hemoraghic gingivitis-teeth float in the soft tissue, excessive bone loss, spontaneously tooth exfoliation, palmarplanar keratosis, keratosis of elbow and knee, may be confused with psoriasis
o ectopic calcification of falx cerebri.
o Tx: rigorous OH, chlorhexidine rinse and periodic antibiotic therapy
Mucopolysaccharidosis (autosomal recessive) such as Hurler and Hunter syndrome:
o Macroglossia, anterior gingival hyperplasia due to mouth breathing
o Thin enamel with pointed cusp in posterior teeth.
o Multiple impacted teeth in one large follicle forming a rosette-like pattern radiographically(in Hunter syndrome).
o Coronary heart disease (Huler)
A practitioner has been using bisect technique for taking xray for his patients. His distance was 8 inches using that system
now if he wants to take x-ray utilizing parallel technique form a distance of 16 inches the time of exposure would be: (
Best caries preventive measure for retained root under Compete Denture cast coping
Rectal bleeding, granolumatous gingivitis and recurrent aphtous ulcer. Crohn disease liner in the casting ring! Its purpose? compensate for casting material expansion
Most common cell in necrotic pulp? PMN cells
All causes gingival hypertrophy except Diltiazem (phenytoin), dilantin, nifedipine, dixosin, cephalox
Medicare is a federal thing that provide health care for elderly . It does not cover dental (both statements are true)
Which pulp horn in primary teeth is most susceptible for exposure during operative procedure MB of 2nd molar
Most common cause of arch space lost in primary dentition decay, ectopic eruption 1st molar
Cancer of the other part of the body metastases most commonly to?
o Bone:Molar region of mandible
o Soft tissue: attached gingiva then tongue
o Breast cancer is the most metastatic to the oral cavity appearing in the mandible
o then lung cancer is the second appearing in the soft tissue.
Picture of a narrow Lucent canal next to upper lateral nutrient cancal?
A question pointing to the Ear lobe on the Pano
How tooth decay develops fructan has adhesive property then it sticks to the tooth surface
After trying the anteriori teeth in the mouth for complete denture patient. In order to determine condylar inclination we
make a record of patient’s anterior guidance. What we have to take into consideration in the lab:
o Raise the pin on the articulator while setting the condylar inclination
A tooth is not responsive to cold, not percussion and pulpation tender necrotic pulp and chronic apical periodontitis
A child is allergic to ampicillin, what is the regimen for prophylaxis? ( know the dosage for cephalexin , azithromicin)
open tray technique impression for implant to transfer the exact angle of implant to the lab
In office bleaching changes the shade through all except surface demineralization
After implant placement, an edentulous patient should
a. avoid wearing anything for 2 weeks
b. immediately have healing abutments placed over the implants ?
c. should wear an immediate denture to protect the implant site
All implant supported overdenture: Minimum 4 implants in Mand, 6 implants Maxilla
o Implant and tissue supported overdenture: For mandibular denture 2 implants in Mand symphysis btw mental
foramina, may be joined by a bar
o A minimum of 3 months healing time is usually recommended following fixture placement (nonimmediate loading)
to allow for osseointegration of the implant fixture
what is the most definite way to distinguish ameloblastoma from OKC
o a.smear cytology
b.reactive light microscopy
histologically loss of retepegs is seen in pemphigoid
o lichen planus(sawtooth-shaped rete pegs of epithelium) Which of the following describes the character of dentinal tubules at the pulpal end when compared to those at the enamel
a. More per unit surface area and more wider in diameter.
b. Less per unit surface area but much wider in diameter.
c. More per unit surface area and smaller in diameter
d. Less per unit surface area and smaller in diameter
For internal bleaching: use sodium perborate & 10% carbamide peroxide****
Have lot of incisal overlap, what do you want to change to maintain balanced occlusion
a) ↑ condylar inclination
b) ↓ condylar inclination
During the child’s first visit, the dentist requested that the parents wait in the reception room. The child cried moderately,
but tearfully, throughout the dental examination and prophylaxis. The dentist “gave her permission” to cry while he/she
worked and then took no notice of her crying. Her crying diminished in intensity over time and then stopped. With respect
ONLY to the crying behavior, the dentist has
o used positive reinforcement.
o used negative reinforcement.
o extinguished the behavior.
o ignored the problem.
You have HIV+ pt you can do all of the following except a) treat with metronidozole b) free gingival graft c)prophylaxis to
You give the nitroglycerin to the pt with angina and heart rate goes up what’s the reason?
o natural reflex to the decrease in blood pressure
Which drug will be used to treat an overdose of methotrexate? leucovorine
Which fluoride causes the most staining? Stannous
New FMX Radio pregnancy or 6 months ago had Taken one
Which kind of caries has been reduced over time? Occlusal, root, proximal
Max ridge in denture pt becomes ………….. over time? Narrow, wide , small , large
Diabetic undergoing surgery?
o Take Clear fluids with same insulin intake
o Take Clear fluids with ½ amount insulin?
Pic of dorsum of tongue with 1 side totally red with white nasty patches and painful? Phemigus
what sound altered with altered vertical dimension? S sound
symptoms if too much codeine?
Diabetes leads to Blindness
Hep A is transmitted by? Ass to mouth
Stucture most likely damaged with gingival graft?
o Greater palatine nerve (I think)
o Less palatine nerve
Know the level CD4 and neutrophils of HIV patients If there’s space, what is most likely prevent the tooth distal from it to move into space? Occluding to opp tooth?
Most associated with developing stage of gingivitis? Macrophages
Know that PDL thickens as you get older
Mouth breathers leads to? Open bite long face
Primary tooth most like to have high chance of pulp exposure? Mand first molar
Who has highest autoimmune diseases? Adult female
Which diseases are assoc with positive nikolsky sign? Pemphigus
If do class 2 on patient with high caries? Resin bond composite
If have large caries near pulp, what do you do? Placed GI liner, restore with composite
What is function of reciprocal clasp? Retention Oppose force on buccal clasp or stability
Signs of hyperocclusion Recession Pain when biting down hard Root resorption Alteration of lamina dura and pdl space
Patient with past heart attack, high bp, high chlosterol, asa type? Type 3
Bennett shift, what is the path of movement laterally
Distobuccal flange of denture is determined by MASSETER
When do the max centals calcify? 2-3 months
when does plaque accumulate after eating? 1 hour
Know perio diagnosis, what is considered hopeless? Mobility of tooth
Our office is fee schedule and pt needs new crown but pt used up all of her allowance (or something like that), what do you
o Charge same fee
Want to compare 2 groups of people, male and female for something, what test do you look at? Chi square test
What least likely treatment for class 3 furcation? Extraction
What is gives a higher failure rate after perio treatment? Smoking
Is tetracycline good for prophylaxis for children? No
Know wrought wire clasp (pg 330 mosby)
Know all properties of porcelain
Pic of all max anterior lingual totally eroded but incisal edges are fine Pt sucking on lemon
Inform consent is for which ethic principle? AUTONOMY
Anesthesia done into the vein results in?
o increased BP
o increased HR
o pain in the periphery Pt with hemoglobin A1C of 12%,Pt just visited the MD, what kind of TX we can do? Consult with MD prior tx
o In most labs, the normal range is 4-5.9 %.
o In poorly controlled diabetes, its 8.0% or above
o in well controlled patients it’s less than 7.0%.
Buccal cheek of 60 yrs man, not wipe-able?
o leukoplakia( more on floor 50%, tounge25%)
o white spongy nevous bilatral- autosomal dominant
Temp that necrosis happens during implant placement is 47 for 1-5 min
What do u use to drill for implant space
o high torque slow speed drill, and saline
Green stain in porcelain – due to Copper
Methotrexate drug interaction beta-lactamase
GIC- root caries
What do you do when you see a decalcification spot? Fluoride and leave
Community water fluoride level – 1ppm (1 mg per one liter)
Kid is 15 yrs old and living in a community with 0.75ppm of fluoride, what do u do? – no supplementation
TFO on implant, all of the following except – gingivitis and periodontitis
Free gingival graft receives it’s eptithelium from – adjacent tissue (blood supply from CT)
Where is apical positioned graft contraindicated – maxillary palatal region
Most common reason for cardiac arrest in children – respiratory depression, CHD, atrial septal defects, congenital heart
Most common impacted tooth – Max canine, max lateral, mand premolar or max premolar(if wisdom was chioce that one)
What is the most common tooth to erupt in crossbite?
What do u do in a composite restoration. just prep carious pits and fissures
Radiograph showing radiolucency in furcation area in a primary second mand molar – reason is periodontal, pulp necrosis, trauma
If you have to extract 1st, 2nd and 3rd molar, in which order do u extract? 3, 2,1 for better visibility
In which direction do you luxate distoangular max third molar
distal palatal, distobuccal ,palatal, mesial What is the diff between LED curing and conventional – choices were too long (it is an except question)
Rapid Cure – light instantaneously on with no warm up required
No heating of substrates – cold curing close up to cure head
One peak wavelength of output power (multiple peaks possible as required by process)
No fuming of cured material normally caused by excessive radiant power from conventional lamps
Safe operation – no UVB, no ozone, no bulb break, low voltage, no mercury
Predictable radiant output power with limited drop off with life
Variable power – ability to create a cure profile with time e.g. reduced stress curing
Even intensity of radiant power over curing area
Long life time> 10,000 hrs of LED on time (LEDs only need to be on when curing)
Ability to create three dimensional flood areas for curing complex shape
What is compomer
combined benefits of composites (the “comp” in their name) and glass ionomers (“omer”).
Why don’t you use GI resin cement in cementation of all ceramic restoration – its expansion could cause cracking of porclain
Rare genetic disorder caused by a mutation in the keratin gene.
Characterized by the presence of extremely fragile skin and
recurrent blister formation, resulting from minor mechanical friction or
PAN to identify – pterygomaxillary fissure
Stafne radiographic identification
Which cyst does not appear in radiograph – Nasolabial
Pear shaped Radiolucency on # 9 – incisive foramen
Which is the best technique to view maxillary sinus – options were both MRI and Water’s view
Best radiograph to view maxillay sinus disease
if they are asking about the anatomic form then CT scan is best.
If you are intending to find soft tissue pathology then MRI.
Best radiograph: CT>waters
Best technuque to maxillary sinus: CT>Water>
Best for diagnosis for soft tissue: MRI
Faint radiolucency with radiopaque border in max sinus – Mucocoele
U shaped radio-opacity/radioopaque in max sinus – zygomatic process
Pt has a chronic periapical abscess with sinus tract – tx is RCT, what is that tx for sinus tract : antibiotics, curettage, cautery, no tx
Which is the best test – EPT or thermal cold is best
Benign lesion with Cauliflower appearance – papilloma
Perineural invasion is seen in – adenoid cystic carcinoma, Pleomorphic adenoma or low grade muco epidermoid carcinoma
This tumor has a marked tendency to invade nerves. Perineural invasion is seen in about 80% of all specimens.
Post herpetic neuralgia cause by varicela zoster virus- shigles extreme unilateral pain
Why do you give methadone to pt who is trying to stop heroine? to decrease withdrawl symptoms
Patient tried using nicotine patches, gum but still couldn’t stop what do you do? Buproprion or behavior counselingWhen RPD is rocking on the fulcrum line, whats the problem? No option about the base
problem with denture base
problem with indirect retainer
Nitrous oxide safe mechanism level – 70%; contraindicated in respiratory infections
contraindication: contagious disease, emphysema, bronchitis, autistism, 1st trimester of Pregnancy.
Periostat – doxycycline 20mg placed in periodontal pocket – what does it do? I think it inhibits collagenase
What is allograft? same species
Couple of questions about bisphosphanate
Avoid invasive dental procedures while receiving bisphosphonate treatment.
For patients who develop osteonecrosis of the jaw while on bisphosphonate therapy, dental surgery may exacerbate the condition.
Clinical judgment by the treating physician should guide the management plan of each patient based on an individual benefit/risk
Dental infections should be managed aggressively and nonsurgically (when possible).
Endodontic therapy is preferable to extractions; and, when necessary, coronal amputation with root canal therapy on retained roots
to avoid the need for extraction.
Dentist tells a patient that mercury is toxic and she should replace her amalgams with composite – which principle of ethics dentist
does not follow? veracity
What do you prescribe for pts with ANUG? Tetracycline in immunocompromised; Debridement and mouthwash Hydrogen peroxide
Pt with manic depression (bipolar) disorder not willing to get treated for that is now getting dental treatment from you. What do you
see in this patient mood swings
One of your patient is having a dental problem and treatment that is not under your capability and you are reffering that patient to a
specialist, this type of behaviour comes under which of the following codes of ethic nonmaleficience
Which of the following causes Cavernous sinus thrombosis
A)Subcutaneous Abscess of upper lip
b)Subcutaneous abscess of lower anterior region
Infections in upper front teeth are within the area of the face known as the “dangerous triangle”. The
dangerous triangle is visualized by imagining a triangle with the top point about at the bridge of the nose and
the two lower points on either corner of the mouth
Pt brushes twice a day n also floss but still he has calculus what do u suggest C) demonstration of brushing
First upper molar is supra erupted and the lower opposite molar is missing which of the following u will not do?
A) up righting the molar B) rotation of molar C) Intrusion
In Implant preparation which of the following can be used
A)Hydroxyapatitie Irrigant b) High Speed Hand Piece c) Low torque Drill d)Air Coolant.
Cast restoration procedure which impression is least used ?
Additional, polyether, Irreversable hydrocolloid (alginate), agar
Pt has hepatic dysfunction which pain medication can prescribe? a-Oxycodone b-naproxen c-acetaminophen
Highest cleft palate incidence Asian
which of the following dental treatment can be done with pts taking bisphosponate A)Alveoloplasty B) endo C) Extraction D) Scaling Confounding
In Epidemiology a confounder is: not part of the real association between exposure and disease
o predicts disease unequally distributed between exposure groups
o A researcher can only control a study or analysis for confounders that are: known, measurable
Example: Grey hair predicts heart disease if it is put into a multiple regression model because it is unequally distributed
between people who do have heart disease (the elderly) and those who don’t (the young). Grey hair confounds thinking
about heart disease because it is not a cause of heart disease.
Strategies to reduce confounding are:
o randomization (aim is random distribution of confounders between study groups)
o restriction (restrict entry to study of individuals with confounding factors – risks bias in itself)
o matching (of individuals or groups, aim for equal distribution of confounders)
o stratification (confounders are distributed evenly within each stratum)
o adjustment (usually distorted by choice of standard)
o multivariate analysis (only works if you can identify and measure the confounders)
Primary stress bearing area in mandible: a-Retomolar pad b-alveolar ridge c-buccal shelf
and in case the residual ridge is in good shape it also contributes to primary support.
In which of the following muscles you can place the mandibular denture
a-lateral pterygoid b-middle pterygoid c- buccinator (Buccal) d-maseter (Distobuccal)
picture of diffused pigmentation in anterior max and mad incisors in attached gingiva? Racial pigmentation
5 yrs with systemic disease what MW used for plaque control
a-NaF b- Chlorhexidine
which of the following is conditioned stimulus
a) dentist b)dental chair
which of the following are necessary for a test to be accurate
a)specificity b)reliability c)validity
Most common mid facial fracture is Zygomatic complex fracture
Conventional perioperative management of diabetics
Hypoglycemia is much more dangerous in a patient rendered unconscious than hyperglycemia
Therefore it is safer to err on the side of hyperglycemia in patients undergoing surgery.
Nevertheless ketoacidosis must be avoided.
For most well controlled Type II diabetics, hypoglycaemia caused by OHAs and insulin pose a higher risk in the perioperative
period than hyperglycaemia.
“No glucose no insulin” OHAs should be withheld on the morning of surgery and on the evening before. It is the
sulphonyureas that cause hypoglycemia.
Take special precaution with chlorpropamide (diabenase) and glibenclamide (daonil) as these have a very long duration of
action, and should be stopped a couple of days in advance.
NBDE Part 2 Day 2
8 yrs old kid with autism
Hx of Heat Attack
Pt with no med Hx but has attrition and lichen planus Mercury poisoning causes what?
Loss of hair
o Will cause peripheral neuropathy (paresthesia, burning or itching), skin discoloration, shedding skin (desquamation)
o What is a subacute sign of Mercury toxicity…? (something like that)
Why would you remount outside mouth?
o T- muscles wont interfere
What causes teeth to be green or orange?
o Intrinsic stuff
Combination clasp RPD?
o Ibar and cast circumferential
o T- wroth wire clasp + cast circumferential
o Ibar + T bar
o Minor + major connector
Wroth wire clasp will reduce torque force (used for perio involved teeth), you use wroth wire for distal
extension cases on canine and pre.
When person has ketone breath? Hyperglycemic
Ortho: difference between skeletal crossbite and non-skeletal crossbite?
o Posterior Crossbite, anterior open bite (most common), constriction of maxilla, class II, crossbite
When to stop thumb sucking? Intervention by dentist with appliance at age 5-6 if child has not stopped yet
Perio: If little attached gingiva is present, what do you not do? GINGIVECTOMY
Full flap to exposed a lot of bone
o T- modified widmans EXPOSES TOOTH ROOTS AND ALVEOLAR BONE; no apical repositioning of flap
o Mucoperiosteal FULL THICKNESS
IgG, what does it effect?
o IgG can cross the placenta and give humoral immunity to fetus
Rubber band if around central incisors to close diastemas, what condition will allow this?
o T- no additional adverse effect
Path: Most contagious stage of Syphillis?
o Stage I
o Secondary stage is most contagious
o Stage III
Which clinical trial where sample size doesn’t make a difference? surveillance
If you have pt w/ bad oral hygiene, what type of braces?
o No tx
o T- limited fixed
o When noncompliant patient completes ortho, white kind of retainer? I’d assume fixed not removable…?Negative architecture q, when interseptal bone is lower than crestal bone?
Lesion in the middle of tongue also pt had it on palate before and pt is healthy?
o T- candidasis—sounds right
If you want to reverse vasoconstriction to get dilation Proponolol with Epi
Vasoconstriction caused by?
o alpha agonist, Beta antagonist
Nitrous sedation contraindications? Nasocongestion
Which is antidepressant?
o Something pentol
Fluexitine (SSRI), Mazindol, Buspirone, Isocabaxazid
If your jaw is broken, allow to heal, how will the growth be?
o Symmetrical effective
o Condylar side
3cm blue on tongue, what is it?
If you are doing a graft mandibular molar and premolar, what interferes?
Which can you anesthesize easier?
o Long buccal
Which is will mostly cause implant to fail?
o Oblique ligament
o Transeptal ligament
Why do porcelain break on FPD Flexure of metal base
Major wrong thing with bridge abutment not fit
What is pontic like M-D convex
If you pack bone, how does allograft heal Bone morphongenic protein
Allograft Cadaver bone
If hyperocclusion what will it cause
occlusal tooth wear
fractures of teeth/restorations
hypersensitivity of teeth during mastication
cervical dentin hypersensitivity
vertical bone loss or localized bone destruction (secondary to periodontal disease)
masticatory muscle or TMJ pain.
Advantage of inlay over amalgam Esthetics, less tooth reductionEndo- cant find small orifice what don’t you not use Apex locator
Apexogenesis, which it doesn’t do
o Increase blood supply/flow
o Normal root lengthening
o Close apex
o Thicken root
Did RCT, pt went home, still sensitive, what is most likely? overinstrumentation
Diagnosis of periapical chronic abscess
Which cant you use for diagnosis????
Open apex on primary
o Use cold test
o If crown on tooth use Thermal test
Bring pt for trials modeling
If a child is told from parent you will feel no pain from filling, what does this cause
o Bad relationship between pt and dentist
o Unruly child is someone who does not respect authority and go abide rules—
Tooth fuse or germination which stage
o Abnormalities in tooth size and shape occur as a result of disturbances during the morphodifferentiation stage of
tooth development. e.g. fusion, germination, concrescence.
AI and OI which stage
Abnormalities in tooth structure, namely defects in the enamel or dentin layers, result from disruption
during the histodifferentiation, apposition, and mineralization stages of tooth development.
What best brushing names Sulcular
o Platelet aggregation
Aspirin is it extrinsic or intrinsic pathway?
Arachidonic is a precursor for Prostaglandin
Implant question on Analog
o How implant on cast
o Impression taking material
Internal component purpose— external hex give antirotation
Max RPD needs to fit how Passively
Pt wore denture for 15 years then got irritation
Where does the clasp fit? infrabulgeIf you have endo abscess but no sinus tract, can puss drain through pdl
o Statement true but reason doesn’t confirm
What material do you use to capture VDO
What is the reason you would do MOD onlay vs Amalgam
o Better facial contour
Open diastemas 8+9, least successful treatment is
What surface build for oseointigration for implant Surface titanium oxide
Mand ant teeth picture with opaque line to the apex Nutrient canal
When do you use general anesthesia to work
o 2 yr multiple filings
o Nervous pt (no)
o 4 fillings on all molars
o Question said something about a 2 year old needing 12 fillings …
When do you hit non functional cusps
o T- retrusion
With age what increases?
Microcitic something anemia
o T- sickle cell
If you have #7 implant what do you need for full success
o no contact on lateral movements
Which is not a nobel metal
2 pac smoker no bleeding?
Multiple restorations end result
o Same occlusal scheme as she had in the start
Another vasoconstrictor: know alpha blocker, what causes it, or agonist of alpha and beta
Whats used for antidepressant – Theopentanol
Xray – put lateral border orbit, out of focus, or lateral wall of max sinus
Know what happens with incorrect vertical or horizontal angulation when taking bitewings on a child
Corocoid process /x ray
If jaw broken, allow it to heal (without taking care of it), what will be affected: subcondylar fracture, symmetrical non symmetrical3?’s definitive Dx, if shit is growing on side of tongue; incisional biopsy, toulidine blue, cytology, which test he say incisional biopsy
Implants- most likely to disturb what? Apical, transeptal, oblique ligaments, or overall musculature
Large MOD composite, what’s disadvantage? Occlusal wear (T)
Space maintainer – 4 years lose 1st molars, distal shoe, band and loop, lingual arch, 4 y.o. so you put nothing
Know all eruption and calcification sequence
when use utility gloves? Cleaning instrument
Patient goes to periodontist to get flap surgery, who does re-eval? You, perio, both? (both I believe)
Gram negative: broad spectrum antibiotic
Physical composition of food, which aspect related is carcinogenic? The amount of times you chew? (a choice, no idea)
If you have class V lesion and bottom part on cementum? Occlusal you bevel, part on cementum, 90 degree butt joing
When can you have unsupported enamel? Class III, IV, facial of I or II
Varicose veins (or large?) On tongue in Elderly? Because of HTN = T
ORN – blood flow, mandible
Put pulp cap – What’s over it? GI liner
PMMA – what is activator/stimulator?
Patient comes in with bad perio, why Listerine rinse? because it causes plaque destruction
Question about doctor touching PMMA, what kind of reaction may he experience…
Which electron shell has highest power? (f/d…outermost shell)
Film Fog caused by
Ferrule effect – Important for crown lengthening
Which material in 100% humidity would distort? Reversible hydrocolloid, addition silicone, etc
Cement: When doing composite, what inhibits polymerization? Zinc oxide, Eugenol, Water
Highest chance of leakage under rubber dam? Holes too wide, Holes too far apart, Too close
Alcoholic – INR test
Coumadin – INR test
Tx Alcoholism – Arabus?
Ketone breath – Hyperglycemic
Which is worst/most uncomfortable for patient to do: Increase VOD, have CR, slightly off, Decrease VOD (in full dentures) – causes
Pt has dialysis bring them in day after
Definitive Dx: Excisional, Incisional, for a 2x2x3 mm lesion, which oneSmoker vs non- smokers observing from 2000-2006 its called a Cohort
T test average between clinical trial A & B what to do? Standard deviation, chi test,
If ext of max molar what type of tissue on root which is embedded in maxillary sinus
o Pseudostratified ciliated columnar epithelium
What molar has a c shaped canal (xray shows pa of #31 and the roots where convergent)
o Mand 2nd molar with convergent roots
Where is it most important area to have thickness on the metal on FPD on connector area
On crown where do you place retentive groove
Pt has had a cleft palate as a child, it was taken care of and at 30 years wants to get implants.
o No! never implants with cleft palate-
Post bilateral collapse- post mand edentuluous ptwas chewing
Picture shows bilateral distal extention and max teeth had been chewing down on the edentulous ridge, man edentulous
ridge looked white and beat up, question said Which layer on top later of cells has increased.???
o T- Strt corneum
o Strt lucidum
T/F metropolol and epi is ok together
If pt on non-selected b-blocker can you give epi
o No – this is right bc a non-selective b blocker is like proponlol.
Max canine and mand canine ectopic from facial, what angle classification
o T- I
SNA angle 6
o Class II
Liver cirrhosis, need full mouth extraction
Perio—diagnosis, a lot of chronic periodontitis Full ext—how long do you wait for max denture
o 1 day
o Same day
o 1 week
o T- 8 week
o 16 week
What steps would you use for immediate denture
Perio steps: SRP, goss debridement, caries….
Pt 14 yo ectopic canine but healthy with asthma
o What does she need to bring— inhaler
o There is light sulcular patches on palate and can be scraped, also she used inhaler too much during soccer practice-
— T- candida
Light catch with explorer
All roots furca showing, what would you give him
o Fluoride for a week
o 1 day
o Every 3 months
Molar Mesial caries in xray, xray shows caries to pulp and occlusal picture shows super white mesial structure
o Early decal
o T- Usupported enamel
nd molar stain happened b4 extraction of 1st molar
o T- stain happened b4
What do you not use for ext mand premolar
Pt 60yo impact mand molar, tx plan
o Advise pt impacted tooth but don’t extract
SCC on tongue
o What you do—- Incisional
4 teeth what worst prognosis for RCT
o Premolar(decalcified canals)
If you upright molar a mesially tilted…. Distal and inferior, crown moves distraly root stays at same place
Implant, pt diabetic, anti depression, HTN, liver trans 2yo, hep c
o T- ASA III
o ASA II
o ASA IV Diabetes can you place implant if HbA1c is 8
o I would say— refer to physician, and no cant place implants
Hawley appliance for skeletal or non-skeletal deformities
o Correction of skeletal crossbites
Internal derangement cause by tear or stretch of ligaments
o The more common is referred to as an internal derangement with reduction; the disc slides into and
out of its normal functional position as the jaw opens or closes, causing the popping sound
characteristic of TMD.
o In cases of internal derangement without reduction, the disc is permanently displaced or dislocated to
an incorrect position, and the jaw’s range of motion is limited.
Erythromycin decreases the P450 metabolism of other drugs
Penetration of xrays is influenced by Kv
o Decrease source-film distance, increase density
Valium causes orofacial clefting
Analgesic compound #3 contains 30mg of codeine
Ethyl alcohol is the antidote for methanol because it
o Inhibits metabolism
o Competes for alcohol dehydrogenase
o Prevents formation of formaldehyde
o Prevents damage to the optic nerve
If patient is taking Cimetidine, they can take Allegra (antihistamine)
Constitutional symptom chills
Belladonna alkaloids and anticholinergics increase intraocular pressure and are CONTRAINDICATED in
patients with GLAUCOMA
Increase potency of local anesthetics by lengthening the intermediate chain
Chloramphenicol causes aplastic anemia
Therapeutic index indicates the safety of a drug
The most potent antitubercular drug is ISONIAZID
Semilunar flap allows you to see the root with the least soft tissue reflection
Rifampin is known to cause oral contraceptive failure
Digoxin at toxic levels causes ventricular fibrillation
Young patients - vervical stains are prominent
If you don’t use flux, it causes shrinkage porosity
Valproic acid spontaneous gingival hemorrhage upon withdrawal
Treat TCA overdose with physostigmine
Morphine poisoning pinpoint pupils
Phenytoin is used to the treatment of epilepsy and arrhythmias
Digitalis is used to treat CHF In patients on Quinidine for atrial fibrillation, use Digitals to prevent ventricular tachyarrythmias
o inhalation causes
Coronary arterial dilation
Peripheral arterial dilation
Decreases arterial blood pressure
o Prolonged use causes methemoglominemia
Cardiac glycosides decrease the concentration of K+ in heart muscle
Hydralazine acts directly on arterial smooth muscle
Schedule II narcotic and antipsychotic neuroleptic analgesia
Benzylpenicillin excreted primarily by renal tubular secretion
Irreversible anticholinesterase poisoning die because of respiratory failure via paralysis of diaphragm
Chlorpromazine is a α blocker orthostatic hypotension
Lidocaine is less effective topical anesthesia
Hydroxyzine (sedative) dry mouth
Tramadol centrally-acting analgesic, binds to Mu, inhibits NE and serotonin reuptake
Ketorolac analgesic administration by mouth or IM
Horizontally impacted teeth are most difficult mandibular impactions
LA + sedation of diabetic patient reduce dose of insulin and don’t eat
o La but no sedation usual dose of insulin and eat as norma