Oral Anatomy MCQs

Page No. 19

Primary canine erupts______________?


aAfter D


bBefore B


cAfter B


dAfter E


View Answer After D

First evidence of calcification of maxillary permanent central incisors occurs at_____________?


a3-4 months


b10-12 months


c2-3 years


d3-4 years


View Answer 3-4 months

Root completion of the mandibular first molar takes place by the age_______________?


a7-8 years


b8-9 years


c9-10 years


d10-11 years


View Answer 9-10 years

Beginning of eruption of permanent tooth starts_____________?


aAfter completion of root


bWhen apical third root is still to be formed


cWhen half of the root is still to be formed


dwhen root formation starts



In how many years, the central incisors erupt as permanent teeth ______________?


a8-9 years


b10-12 years


c6-7 years


d17-25 years


View Answer 8-9 years

The teeth that are retained for the longest period of time are__________________?


aMaxillary incisors


bMaxillary canines


cMandibular canines


dB and D


View Answer B and D

The process of exfolitation of primary teeth is between_____________?


aSeventh and Eightth years


bSeventh and Ninth years


cSeventh and Tenth years


dSeventh and Twelfth years



Which of the following is true about calcification of teeth ?


aCalcification of primary teeth is almost complete at time of birth


bCalcification of all primary teeth and few permanent teeth complete at birth


cCalcification of all permanent teeth complete at birth


dCalcification of primary teeth starts around birth



The first evidence of calcification of primary anterior teeth begins approximately between ______________?


a14 to 17 weeks in utero


b9 to 12 weeks in utero


c6 to 9 weeks in utero


d17 to 20 weeks in utero



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___________?


aMaxillary central incisor


bMandibular lateral incisor


cMaxillary lateral incisor


dMaxillary canine


View Answer Maxillary canine

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