Dental Anatomy NBDE Part I UPDATED
ACTUAL Exam Questions and CORRECT
Answers
The primary tooth that has the most distinctly prominent facial cervical ridge is____ -
CORRECT ANSWER - ... Mandibular 1st molar
The lingual cusp of the maxillary premolars is off set - CORRECT ANSWER - to the
mesial the first more than the second.
The primary _______ generally exhibits cusp of Carabelli - CORRECT ANSWER -
second molar
Mamelons that remain beyond the age of _____ generally indicate ______ - CORRECT
ANSWER - 10
an open bite
5. _____ and ____ generally occlude with only one opposing tooth. - CORRECT
ANSWER - Mandibular central incisors
Maxillary third molars
6. The ___ groove between the df cusp and the dl cusp of the mandibular 1st molar is ___ -
CORRECT ANSWER - developmental
distofacial.
7. The roots of the maxillary second molar tend to be _____ - CORRECT ANSWER - less
divergent and have greater distal inclinations.
8. The teeth whose function is primarily biting are _____ - CORRECT ANSWER -
incisors and canines.
,9. The tooth with the longest root is the _________. - CORRECT ANSWER - maxillary
canine...
10. The groove pattern for the _____ is considered a Y or Dryopethicus patter - CORRECT
ANSWER - mandibular first molar...
11. The groove pattern for the _______ is consider a cross (+) pattern. - CORRECT
ANSWER - mandibular second molar
12. When compared to a maxillary canine the mandibular canine has contact areas located _____
- CORRECT ANSWER - more incisally
13. The mandibular 1st PREmolar the mesial marginal ridge located ____ - CORRECT
ANSWER - more cervical than the distal.
14. The ____ of maxillary molar forms the distal boundary of the central fossa. - CORRECT
ANSWER - oblique ridge
15. A transverse ridge results from the union of the _______. - CORRECT ANSWER -
facial and lingual triangular ridges
16. For multirooted teeth dentin continues to form MOST rapidly at the ____ - CORRECT
ANSWER - floor and roof of the pulp chamber.
17. Maxillary incisors are the only anterior teeth that are wider - CORRECT ANSWER -
facio-lingually than mesiodistally
18. ____ are the only maxillary teeth that are wider facio-lingually than mesiodistally -
CORRECT ANSWER - Maxillary incisors
, 19. ____ are the only posterior teeth that are wider facio-lingually than mesiodistally -
CORRECT ANSWER - Mandibular Molars...
20. ____ are the only mandibular teeth that are wider facio-lingually than mesiodistally -
CORRECT ANSWER - Mandibular Molars
21. Mandibular 1st molar usually has ___ roots and ___ canals - CORRECT ANSWER -
two
three
22. Mandibular 1st molars usually have ___mesial canals. - CORRECT ANSWER - two
23. The _____ is the primary tooth that generally has an oblique ridge. - CORRECT
ANSWER - primary maxillary 2nd molar
24. The mesiolingual cusp of the Maxillary molars occludes in the ____ of the mandibular
molars - CORRECT ANSWER - central fossa
25. The distobuccal cusp of the mandibular molars occludes in the ____ of the maxillary molars.
- CORRECT ANSWER - central fossa
26. The primary ___ exhibits more cusps than the primary ____. - CORRECT ANSWER -
second molar
first molar
27. The occlusal outline of a mandibular first molar is a _____. - CORRECT ANSWER -
pentagon
28. The lingual concavity of the maxillary anterior teeth is most influenced by the _____ -
CORRECT ANSWER - side shift of the mandible.
ACTUAL Exam Questions and CORRECT
Answers
The primary tooth that has the most distinctly prominent facial cervical ridge is____ -
CORRECT ANSWER - ... Mandibular 1st molar
The lingual cusp of the maxillary premolars is off set - CORRECT ANSWER - to the
mesial the first more than the second.
The primary _______ generally exhibits cusp of Carabelli - CORRECT ANSWER -
second molar
Mamelons that remain beyond the age of _____ generally indicate ______ - CORRECT
ANSWER - 10
an open bite
5. _____ and ____ generally occlude with only one opposing tooth. - CORRECT
ANSWER - Mandibular central incisors
Maxillary third molars
6. The ___ groove between the df cusp and the dl cusp of the mandibular 1st molar is ___ -
CORRECT ANSWER - developmental
distofacial.
7. The roots of the maxillary second molar tend to be _____ - CORRECT ANSWER - less
divergent and have greater distal inclinations.
8. The teeth whose function is primarily biting are _____ - CORRECT ANSWER -
incisors and canines.
,9. The tooth with the longest root is the _________. - CORRECT ANSWER - maxillary
canine...
10. The groove pattern for the _____ is considered a Y or Dryopethicus patter - CORRECT
ANSWER - mandibular first molar...
11. The groove pattern for the _______ is consider a cross (+) pattern. - CORRECT
ANSWER - mandibular second molar
12. When compared to a maxillary canine the mandibular canine has contact areas located _____
- CORRECT ANSWER - more incisally
13. The mandibular 1st PREmolar the mesial marginal ridge located ____ - CORRECT
ANSWER - more cervical than the distal.
14. The ____ of maxillary molar forms the distal boundary of the central fossa. - CORRECT
ANSWER - oblique ridge
15. A transverse ridge results from the union of the _______. - CORRECT ANSWER -
facial and lingual triangular ridges
16. For multirooted teeth dentin continues to form MOST rapidly at the ____ - CORRECT
ANSWER - floor and roof of the pulp chamber.
17. Maxillary incisors are the only anterior teeth that are wider - CORRECT ANSWER -
facio-lingually than mesiodistally
18. ____ are the only maxillary teeth that are wider facio-lingually than mesiodistally -
CORRECT ANSWER - Maxillary incisors
, 19. ____ are the only posterior teeth that are wider facio-lingually than mesiodistally -
CORRECT ANSWER - Mandibular Molars...
20. ____ are the only mandibular teeth that are wider facio-lingually than mesiodistally -
CORRECT ANSWER - Mandibular Molars
21. Mandibular 1st molar usually has ___ roots and ___ canals - CORRECT ANSWER -
two
three
22. Mandibular 1st molars usually have ___mesial canals. - CORRECT ANSWER - two
23. The _____ is the primary tooth that generally has an oblique ridge. - CORRECT
ANSWER - primary maxillary 2nd molar
24. The mesiolingual cusp of the Maxillary molars occludes in the ____ of the mandibular
molars - CORRECT ANSWER - central fossa
25. The distobuccal cusp of the mandibular molars occludes in the ____ of the maxillary molars.
- CORRECT ANSWER - central fossa
26. The primary ___ exhibits more cusps than the primary ____. - CORRECT ANSWER -
second molar
first molar
27. The occlusal outline of a mandibular first molar is a _____. - CORRECT ANSWER -
pentagon
28. The lingual concavity of the maxillary anterior teeth is most influenced by the _____ -
CORRECT ANSWER - side shift of the mandible.
