Oral Anatomy MCQs

Page No. 20

The first macroscopic indication of morphologic development of primary incisors approximately at____________?


a11 weeks in utero

✓


b14 weeks in utero

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c16 weeks in utero

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d6 weeks in utero

✖


View Answer 11 weeks in utero

The tooth bud for the third molar is initiated at about the age of______________?


a6th month I.U

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b1st year of life

✖


c2nd year of life

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d8th year of life

✓


View Answer 8th year of life

Maxillary primary cuspid enamel completion takes place at______________?


a6 months in utero

✖


b6 months after birth

✖


c9 months in utero

✖


d9 months after birth

✓


View Answer 9 months after birth

First permanent molars begin to calcify at ______________?


a6 months of intra utrerine life

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bAt birth

✓


cBefore decidous incisors

✖


dAbout 1 year after birth

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View Answer At birth

In anxious parent calls you that her 5- month -old child has still no teeth in his mouth then you should_____________?


aCall and do radiographic survey

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bTell her that it is normal at this age

✓


cChild has retarded growth

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dSystemic problem

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The eruption are of maxillary permanent lateral incisor is_____________?


a8-9 years

✓


b6-7 years

✖


c10-11 years

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d8-9 months

✖


View Answer 8-9 years

Calcification of roots of decidous teeth is completed by_____________?


a2 years

✖


b4 years

✓


c6 years

✖


d8 years

✖


View Answer 4 years

The decidous canine emerges______________?


aBefore lateral incisor

✖


bBefore first molar

✖


cAfter first molar

✓


dAfter second molar

✖


View Answer After first molar

The most common sequence of eruption of the permanent maxillary teeth in children is_______________?


a1-6-2-3-4-7-5-8

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b2-3-1-6-7-5-4-8

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c6-1-2-4-3-5-7-8

✓


d6-1-2-3-4-5-7-8

✖


View Answer 6-1-2-4-3-5-7-8

A radiograph of 4- years old child reveals no evidence of calcification of mandibular second pre molar. This indicates______________?


aIt is too early to make final predication

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bThe teeth may develop later

✓


cPrimary second molar extracted to allow mesial drifting of permanent first molar

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dThe child may never develop premolars

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