oral anatomy MCQs – Page 5

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

oral anatomy Mcqs
81. First evidence of calcification of maxillary permanent central incisors occurs at_____________?
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A. 3-4 years

B. 10-12 months

C. 3-4 months

D. 2-3 years

82. The maxillary teeth which have single antagonist are__________?
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A. Lateral incisors

B. Third molars

C. Permanent central incisors

D. Permanent canines

83. Dentition of humans is_______________?
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A. Omnivorous

B. Herbivorous

C. Carnivorous

D. None of the above

84. A new tooth is erupting in the mouth of a one and a half year old child. This tooth is most likely to be a decidous___________?
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A. Maxillary canine

B. Maxillary lateral incisor

C. Maxillary central incisor

D. Mandibular lateral incisor

85. Temporo mandibular ligament is attached to _____________?
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A. Coronioid process

B. Lateral aspect of TMJ

C. Mandibular condyle

D. Posterior aspect of TMJ

86. Conjoint tendon is formed by _________?
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A. External and internal oblique

B. Internal oblique and transversus abdominis

C. External oblique and transversus abdominis

D. Internal oblique

87. Beginning of eruption of permanent tooth starts_____________?
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A. After completion of root

B. When apical third root is still to be formed

C. when root formation starts

D. When half of the root is still to be formed
88. In the majority of situations, the first decidous tooth to erupt is the______________?
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A. Maxillary second molar

B. Mandibular first molar

C. Maxillary central incisor

D. Mandibular central incisor
89. Among the difference between teeth in the decidous and the permanent dentition is that_____________?
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A. Crowns of decidous incisors are wider mesiodistally than their cervico incisal lengths

B. Root trunks of decidous teeth are larger compared with their overall root lengths

C. Cervical ridges are more pronounced in permanent molars

D. Buccal surfaces of the permanent molars are flatter

90. Maxillary facial and mandibular lingual cusps require sufficient occclusal length and horizontal overlap for_____________?
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A. Esthetics

B. Soft tissue protection

C. Centric stability

D. Chewing efficiency

91. IN occlusion, the teeth have______________?
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A. Cusp to cusp contact

B. Edge- to edge contact

C. Marginal contact

D. Surface to- surface contact
92. Which among the following is NOT a common finding of the decidous dentition ?
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A. Tight contacts, absence of spacing

B. Shallow overjet and overbite

C. Flush terminal plane

D. Ovoid arch form

93. The process of exfolitation of primary teeth is between_____________?
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A. Seventh and ninth years

B. Seventh and Twelfth years

C. Seventh and eight years

D. Seventh and tenth years

94. The teeth that are retained for the longest period of time are__________________?
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A. Mandibular canines

B. B & D

C. Maxillary canines

D. Maxillary incisors

E. Mandibular incisors

95. How many pulpal horns are there in the mandibular second primary molar ?
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A. 3

B. 5

C. 4

D. 6

96. Which of the following gives the best description of erupted permanent teeth typically seen in a 9- years old______________?
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A. Only molars

B. 1,2,4,5,6,7 in all quadrants

C. All teeth except third molars

D. 1,2,6 in all quadrants
97. In the intercuspal position, the lingual cusp of maxillary 2nd premolar contacts the______________?
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A. Distal marginal ridge of mandibular 1st premolar

B. Mesial fossa of mandibular 1<sup>st</sup> molar

C. Distal marginal ridge of mandibular 2ndmolar

D. Distal fossa of mandibular 2ndpremolar
98. Once the enamel formation is complete, the tooth will erupt after approximately______________?
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A. One year

B. Two years

C. Three years

D. Four years

99. Pulp chambers and roots canals in decidous teeth______________?
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A. Shallow and wide

B. Wide and deep

C. Shallow and narrow

D. Wide and narrow

100. The root completion of permanent teeth is achieved after __________ years o eruption?
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A. 1-1

B. 4-Mar

C. 2-3

D. 5-Apr