The maxillary molar crown of an early fossil primate featured a trigone made of three main cusps, these cusps were_____________?

Related Mcqs:

1. How many cusps does the crown of the maxillary first primary molar have ?

   A. 2
   B. 3
   C. 4
   D. 5

2. 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

3. 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

4. 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

5. In an ideal occlustion buccal cusps of maxillary teeth, occlude with______________?

   A. Fossa and rdges
   B. Grooves and embrasures
   C. Lingual cusps of mandibular teeth
   D. Occlusal pits and fissures of mandibular teeth

6. Maxillary facial and mandibular lingual cusps require sufficient occclusal length and horizontal overlap for_____________?

   A. Esthetics
   B. Centric stability
   C. Chewing efficiency
   D. Soft tissue protection

7. A 3 cm squamous cell carcinoma of the retromolar trigone and invading the mandible and the medial pterygold muscle is at what TNM stage____________?

   A. Stage I
   B. Stage II
   C. Stage III
   D. Stage IV

8. 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

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. Maxillary first molar has how many roots ?

    A. 1 facial and 2 lingual
    B. 1 lingual and 2 facial
    C. 1 mesial and 2 buccal
    D. 1 mesial and 1 distal