Differences in permanent molars l Oral morphology MCQs

 

Differences between permanent molars l Oral morphology and anatomy MCQs for dental students

MCQ on differences between permanent molars for dental morphology

1. The cusp of Carabelli is a feature of:

a. Permanent maxillary 1st molar

b. Primary maxillary 1st molar

c. Primary maxillary 2nd molar

d. Both a and c

2. Which of the following statements is true regarding the molars?

a. Maxillary molars have 2 roots; mandibular molars have 3 roots

b. Maxillary molars have 3 roots; mandibular molars have 2 roots

c. Both maxillary and mandibular molars have 3 roots

d. Both maxillary and mandibular molars have 2 roots

3. Maxillary molars have 3 roots. They are:

a. Buccal, lingual and distal

b. 1 buccal, 2 lingual

c. Mesiobuccal, distobuccal and palatal

d. 2 mesial and 1 distal

4. The mandibular molars have 2 roots. They are:

a. Mesial and distal

b. Buccal and lingual

c. Buccal and palatal

d. Both b and c

5. Oblique ridge is a feature of:

a. Maxillary premolars

b. Maxillary molars

c. Mandibular premolars

d. Mandibular molars

6. The following are the features of maxillary molars except:

a. Cusp of Carabelli on 1st molar

b. Oblique ridge on occlusal surface

c. Trifurcated roots

d. Rectangular occlusal crown outline

7. Maxillary molar crowns have:

a. Mesiodistal dimension greater than the buccolingual dimension

b. Buccolingual dimension greater than the mesiodistal dimension

c. Mesiodistal and buccolingual dimensions nearly equal 

d. None of the above

8. Mandibular molar crowns have:

a. Mesiodistal dimension greater than the buccolingual dimension

b. Buccolingual dimension greater than the mesiodistal dimension

c. Mesiodistal and buccolingual dimensions nearly equal 

d. None of the above

9. Compared to maxillary molars, the buccal surface of mandibular molar crowns:

a. Is more vertical

b. Bends buccally from middle third

c. Bends lingually from cervical third

d. Bends mesially

10. Compare to mandibular molars, the maxillary molar crowns exhibit:

a. Less lingual convergence

b. Greater lingual convergence

c. No lingual convergence in 1st molar, which may show a buccal taper

d. Both a and c