Oral Anatomy MCQs

Page No. 22

Once the enamel formation is complete, the tooth will erupt after approximately______________?


aOne year

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bTwo years

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cThree years

✓


dFour years

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View Answer Three years

The correct dentition in a 9- years old child is_____________?


a12 CDE6

✓


b12C456

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c123DE6

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d123456

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View Answer 12 CDE6

Which of the following decidous molars bears the greatest resemblance to a premolar _____________?


aMaxillary first

✓


bMaxillary second

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cMandibular first

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dMandibular second

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View Answer Maxillary first

Primary dentition period is______________?


aFrom birth to 11 years

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bFrom 6 months to 11 years

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cFrom 6 months to 6 years

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dFrom 6 years to 11 years

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Which of the following has the maximum faciolingual diameter of the crown__________?


aDecidous maxillary 2nd molar

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bDecidous maxillary 1st molar

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cDecidous mandibular 2nd molar

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dDecidous mandibular 1st molar

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The primary teeth that present the most outstanding morpholgic deviations from permanent teeth are______________?


aCentral incisors

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bMandibular first molar

✓


cMandibular second molar

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dCanines

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The primary lateral incisors begin to calcify about the_____________?


a4th month of life

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b4th month in utero

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c41/2 month in utero

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d5th month in utero

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View Answer 41/2 month in utero

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


aMandibular central incisor

✓


bMandibular first molar

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cMaxillary central incisor

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dMaxillary second incisor

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Cervical bulge. True is____________?


aEnamel rods at cervical region directed occlusally

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bResults in constriction at cervical region

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cIs characteristic of decidous teeth

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dAll of the above

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Which statement is correct about decidous dentition?


aCalcification of maxillary primary first premolar is completed at birth

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bMandibular first molar erupts at one and half years of age

✓


cThe crowns of primary dentition are more yellowish than permanent

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dThe primary dentition is initiated at 10th month in uterus

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