Oral Anatomy MCQs

Page No. 18

At birth the following teeth are calcifying____________?


aPrimary incisors & first molar

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bPrimary canines & second molars

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cPermanent canines

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dPermanent 3rd molar

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There are two normal children of the same age and sex. In one, all the permanent teeth except the third molars have erupted.In the other,no permanent canines or premolars have erupted. How old are these children ?


a7 years

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b9 years

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c11 years

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d13 years

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View Answer 11 years

As compared to permanent tooth , root formation in primary tooth______________?


aTake less time

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bTake same time

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cSame time

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dIs complete when tooth erupts in oral cavity

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View Answer Take less time

A six- year molar begins to calcify at______________?


aSix months IU

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bAt birth

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c1 years after birth

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d3 years age

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View Answer At birth

Which of the following gives the best description of erupted permanent teeth typically seen in a 9- years old______________?


aonly molars

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bAll teeth except third molars

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c1,2,4,5,6,7 in all quadrants

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d1,2,6 in all quadrants

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Growth of all permanent teeth except last molars is completed by___________?


a6 years

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b8 years

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c12 years

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d17 years

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View Answer 17 years

The root completion of permanent teeth is achieved after __________ years o eruption?


a1-1½

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b2-3

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c3-4

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d4-5

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View Answer 2-3

Before eruption the position of permanent mandibular incisor buds relative to primary incisors is_____________?


aSuperior and facial

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bInferior and facial

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cSuperior and lingual

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dInferior and lingual

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View Answer Inferior and lingual

Which of these teeth are highly sturdy and usually the last ones to be lost ?


aFirst molar

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bCentral incisors

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cCanines

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dPremolars

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View Answer Canines

In the majority of situations, the first decidous tooth to erupt is the______________?


aMandibular central incisor

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bMandibular first molar

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cMaxillary central incisor

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dMaxillary second molar

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