20 Dental Anatomy Facts-2

Primary Maxillary 2nd molar

21. Primary maxillary 2nd molar is the primary tooth that generally has an oblique ridge
22. Primary max 2nd molar is the only primary posterior tooth to have oblique and transverse ridges and distolingual groove
23. Primary 2nd molar generally exhibits the cusp of carabelli
24. Last primary teeth to erupt is the Maxillary 2nd molars
25. Primary 2nd molar exhibits more cusps than the primary 1st molar

Primary Mandibular 1st molar

26. Primary tooth that has the most distinctly prominent facial cervical ridge is Mandibular 1st molar
27. Facial view of a primary mandibular 1st molar the CEJ is most apically positioned on the mesial 1/3rd
28. Primary mandibular 1st molar usually exhibits a distal triangular fossa (Central fossa usually displaced to the distal. Some sources call it a distal or a “main” fossa rather than a central)
29. Primary mandibular 1st molar has the most distinct transverse ridge
30. Primary 1st mandibular molar does NOT look like any permanent tooth
31. Primary teeth that differ the most from permanent teeth are the mandibular 1st molars
32. Highest and sharpest cusp on a primary mandibular first molar is the ML, not MB!

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