Which line angle area is most acute when a permanent maxillary second molar is viewed occlusally ?

Related Mcqs:

1. While charting the dentition of a child, the pedodontist finds that the following teeth are present in all the four quadrants; permanent central incisor , permanent lateral incisor , decidous cuspid , decidous first molar, decidous 2nd molar and permanent 1st molar. The eruptive pattern may be considered most nearly normal for a child aged_____________?

   A. 3-6 years
   B. 7-10 years
   C. 11-14 years
   D. 15- 18 years

2. When viewed occlusally, a primary mandibular second molar closely resembles which of the following mandibular teeth ?

   A. Permanent second molar
   B. Permanent first molar
   C. Second premolar
   D. Primary first molar

3. In normal occlusion , with which grooves / surface of the permanent mandibular first molar does the mesiobuccal cusp of the permanent maxillary first molar occlude______________?

   A. Distobuccal groove
   B. Mesial surface
   C. Mesiobuccal surface
   D. Transverse groove

4. The permanent mandibular second molar differs from the permanent mandibular first molar in number of ______________?

   A. Cusps
   B. Roots
   C. Lingual grooves
   D. Marginal ridges

5. Acute angled cusps in permanent maxillary first molar are_____________?

   A. DB and ML
   B. MB and DL
   C. MB and DB
   D. ML and DL

6. If a permanent first molar is lost, the permanent second molar drifts to the______________?

   A. Buccal side
   B. Distal side
   C. Mesial side
   D. Lingual side

7. Which bifurcation is closet to the cervical line (or) which surface has short root trunk length in a maxillary permanent first molar ?

   A. Buccal
   B. Mesial
   C. Distal
   D. None of the above

8. The shape of the occlusal surface of the permanent maxillary first molar is_______________________?

   A. Oval
   B. Trapezoidal
   C. Triangular
   D. Rhomboidal

9. Cusp of carbelli is present on ________ surface of the permanent maxillary molar ?

   A. Mesial surface
   B. Palatal surface
   C. Buccal surface
   D. Mesial half of the palatal surface

10. The shape of the occlusal surface of the permanent maxillary first molar is___________?

    A. Oval
    B. Trapezoidal
    C. Triangular
    D. Rhomboidal