NBDE 2 Important Endodontics Questions-1

QUESTION: which teeth do you perform pulp eval on?
a. tooth only
b. tooth and neighboring teeth
c. tooth, neighboring teeth, contralateral tooth-ans
d. tooth, neighboring teeth, opposing tooth

QUESTION: Is an apical radiolucency present for a long time with no symptoms and no sinus tract associated with necrotic pulp or asymptomatic apical periodontitis? Asymp chronic periodontits

QUESTION: You have a tooth, no pulp, but periapical radiolucency, you do access and find no canal, what do you do? – I said don’t try to be a hero, refer to an endodontist

QUESTION (DAY 2): A molar is super-erupted, but has irreversible pulpitis, what do you do? – RCT and Crown (other choices were EXT, just do crown – this was tricky because to answer the question, you have to look at the patient dental chart and findings

QUESTION: 5yrs old patient, he fell down 2 months ago, and hit his #E when he fell down, the tooth is now discolored, what do you suspect? – Necrotic pulp

QUESTION: Same patient as above, there is a red swollen lesion on the gingival of tooth #E, what is most likely be? – Sinus tract (other choices, periapical cyst, periapical granuloma, etc)

QUESTION: Same kid from above, What do you recommend for this tooth? – EXT!

QUESTION: What does radiolucency at furcation of primary M1 in 5yo usually indicate:  erupting permanent PM1, necrotic pulp, normal anatomy
a. Necrotic pulp – it is in a 5yo so man PM1 shouldn’t be causing resorption yet

QUESTION (DAY 2): A case of a patient with tooth that has sensitivity that lingers with thermal test, and positive to percussion, what does the patient have? – Irreversible pulpitis with acute periapical abcess (other choices were Irreversible puplitis with no acute peripical abcess, and 2
other choice with reversible pulpitis in them).

QUESTION: Prolonged, unstimulated night pain suggests which of the following conditions of the pulp?
A. Pulp necrosis
B. Mild hyperemia
C. Reversible pulpitis
D. No specific condition

QUESTION: Chronic periradicular abscess indicates: necrotic pulp

QUESTION: X-ray of PA R/L of a primary teeth: Normal R/L because perm tooth is erupting underneath

QUESTION: Little girl had ALL, had radiolucency in furcation of primary 2nd molar. What is the treatment?
• Extraction  • Pulpotomy
• Pulpectomy
A- should be done before radiation therapy.because the contra indications of pulpotomy are : Contraindications for Primary Tooth Pulpectomy
• 1. Teeth with nonrestorable crowns,
• 2. Periradicular involvement extending to the permanent tooth bud,
• 3. Pathologic resorption of at least one-third of the root with a fistulous sinus tract,
• 4. Excessive internal resorption,
• 5. Extensive pulp floor opening into the bifurcation,
• 6. Systemic illness such: as congenital or rheumatic heart disease, hepatitis, leukemia, and
children on long-term corticosteroid therapy, or those who are immunocompromised,
• 7. Primary teeth with underlying dentigerous or follicular cysts.

QUESTION: primary tooth got necrosis, and the inflammation went down through furcation and affects permanent tooth. What is it gonna cause to permanent tooth? Can disturb ameloblastic layer of permenant successor or spread infection

QUESTION: Radiolucency in furcation of primary tooth? Necrotic, extract

QUESTION: In a primary tooth apical infection the first radigrapoh sign is where?- in the furcation.

QUESTION: Most common medication for pulpectomy/pulpotomy? FOROMCRESOL

QUESTION: calcium hydroxide is contraindicated in pulpotomy in a child because it causes irritation leading to resorption in primary teeth

QUESTION: 5.38 picture: know when to extract
If it’s a primary 1st with furcation involvement: EXT
If it’s a primary 2nd, furcation, but restorable: PE
If its any other primary tooth no furcation: PO

QUESTION: The best method to test newly erupted primary teeth – cold test

QUESTION: Which is incorrect? Do EPT for traumatic tooth

QUESTION: Most common medication for pulpectomy/pulpotomy? formacresoll
question:least reliable test on primary teeth?swelling
pulp testing
spontaneous pain
internal resorption
• Electric pulp test(least reliabe)
• Percussion (MOST RELIABLE)

QUESTION: If you have pain, what would be the hardest to anesthetize?
a. Irreversible pulpitis and maxillary
b. Irreversible pulpitis and mandibular
c. Necrotic pulp and maxillary
d. Necrotic pulp and mandibular“When irreversible pulpitis is a factor, the teeth that are most difficult to anesthetize are the mandibular molars, followed by the mandibular premolars, the maxillary molars and premolars, and the mandibular anterior teeth. The fewest problems arise in the maxillary anterior teeth.” Hargreaves, Cohen. Cohen’s Pathways of the Pulp, 10th Edition. Mosby, 052010.

QUESTION: pulpal pain that only occur at night with no stimulation: pulpal necrosis

QUESTION: when the heat apply to tooth, lingering pain for several minutes: irreversible pulpitis

QUESTION: what is diagnosis: lingering pain to cold and sensitivity to percussion?Irreversible pulpitis
and acute periapical abscess
Usually periodontal abscess is sensitive to percussion…irreversible is usually percussion

QUESTION: A tooth is not responsive to cold, not to percussion, and palpation is tender:
necrotic pulp
and chronic apical periodontitis. – irreversible pulpitis and normal apex) there was not an item saying necrotic pulp and normal apex)

QUESTION: Which of the following least important factor in referring an endo case to specialist?
Dilacerations, calcifications, inability to obtain adequate anesthesia? Lease import is mesial inclination of a molar*** correct answer0

QUESTION: 7 yr old boy has vital exposure of tooth 1st perm max molar. What do you do for treatment. Pulpotomy carious? Pulpotomy.

QUESTION: Child had carries exposure on primary 1st molar….what to do pulpotomy

QUESTION: Did pulpotomy in a 7 yr old’s pulp exposed decayed tooth #30 why? To allow completion of root formation (apexogenesis)Apexification: Create an apical barrier in a necrotic tooth with an open apex.

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