oral anatomy MCQs – Page 3

Practise focused oral anatomy questions with marked answers for exam preparation and subject revision.

oral anatomy Mcqs
41. The sharpest cusp of primary first molar tooth is____________?
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A. Mesiolingual

B. Mesiobuccal

C. Distolingual

D. Distobuccal

42. A six- year molar begins to calcify at______________?
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A. 1 years after birth

B. Six months IU

C. At birth

D. 3 years age

43. The last primary tooth to be replaced by a permanent tooth is usually the_____________?
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A. Mandibular canine

B. Maxillary canine

C. Maxillary second molar

D. Mandibular second molar

44. Which muscle is responsible for translation of condyle ?
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A. Lateral pterygoid

B. Medial pterygoid

C. Superior constrictor of pharynx

D. Masseter

45. Facial occlusal line in the maxillary arch is formed by_______________?
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A. Non- supporting cusps

B. Supporting cusps

C. Stamp cusps

D. Centric holding cusps

46. Which statement is correct about decidous dentition?
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A. The primary dentition is initiated at 10<sup>th</sup> month in uterus

B. Mandibular first molar erupts at one and half years of age

C. The crowns of primary dentition are more yellowish than permanent

D. Calcification of maxillary primary first premolar is completed at birth

47. At birth the following teeth are calcifying____________?
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A. Primary canines & second molars

B. Primary incisors & first molar

C. Permanent 3rd molar

D. Permanent canines

48. Calcification of all teeth except last molars are completed by____________?
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A. 8 years

B. 4 years

C. 6 years

D. 2 years

49. The crowns and roots of primary molar at their cervical portions are more____________?
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A. Buliker anteroposteriorly

B. Bulkier mesiodistally

C. Slender mesiodistally

D. Slender anteroposteriorly

50. Which of the following is true about calcification of teeth ?
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A. Calcification of all primary teeth and few permanent teeth complete at birth

B. Calcification of primary teeth starts around birth

C. Calcification of primary teeth is almost complete at time of birth

D. Calcification of all permanent teeth complete at birth

51. Normal dentition in centric occlusion, opposing contact may be expected at_____________?
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A. Buccal slopes of lingual cusps of maxillary posterior teeth

B. All slopes of lingual cusps of mandibular posterior teeth

C. Buccals slopes of buccal cusps of maxillary posterior teeth

D. Lingual slopes of lingual cusps of mandibular posterior teeth

52. 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_____________?
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A. 11-14 years

B. 15- 18 years

C. 3-6 years

D. 7-10 years
53. The decidous canine emerges______________?
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A. After second molar

B. Before first molar

C. Before lateral incisor

D. After first molar
54. Which of the portions of the intra articular disc is the thinnest ?
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A. Posterior

B. retrodiscal

C. Anterior

D. Intermediate
55. Which of the following is dental formula of a 9 years old child_____________?
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A. 76EDC21/ 7EDC21

B. EDC21/EDC21

C. 6EDCBA/ 6EDC21

D. 6 EDC21/ 6EDC21
56. In how many years, the central incisors erupt as permanent teeth ______________?
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A. 17-25 years

B. 8-9 years

C. 10-12 years

D. 6-7 years

57. All of the following muscles are elevators of the mandible except______________?
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A. Temporalis

B. Medial pterygoid

C. Digastric

D. Massetor

58. Calcification of permanent first molar usually begins in the_____________?
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A. In the sixth month of intrauterine life

B. Third month of intrauterine life

C. At birth

D. In the third month of extra uterine life

59. A child has 12 permanent and 12 decidous teeth, what is his age____________?
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A. 11 years

B. 8 years

C. 4 years

D. 13 years

60. The largest mesiodistal diameter in primary dentition is____________?
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A. Maxillary 2nd molar

B. None of the above

C. Mandibular 1st molar

D. Mandibular2nd molar