Oral Histology MCQs

Page No. 15

The bud, cap and bell stage of the developing tooth are based, on growth of the______________?


aStellate reticulum

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bDental papilla

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cEnamel organ

✓


dDental sac

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View Answer Enamel organ

Dental papilla gives rise to_____________?


aPulp only

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bPulp & Dentin

✓


cPulp & Periodontal ligament

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dAll of the above

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View Answer Pulp & Dentin

Disturbance during the morphodifferentition stage of tooth development will result in______________?


aChange in number of teeth

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bAmeloblastoma

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cChange in form and shape of the teeth

✓


dHypoplasia

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First appearance of tooth formation occurs in____________?


a6th week IU

✓


b2nd week IU

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c9th week IU

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d4th week IU

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View Answer 6th week IU

In multirooted teeth, formation of multiple roots is due to presence of_____________?


aEpithelial diaphragm

✓


bCell rests of Malassez

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cToot bud division or bell stage

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dNone of the above

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View Answer Epithelial diaphragm

The formation of the dental lamina is initiated by______________?


aForebrain

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b Rathke’s pouch

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cNeural crest cells

✓


dOdontoblasts

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View Answer Neural crest cells

The hertwig’s epithelial root shealth is essential to development of the root because it_______________?


aGives rise to cementoblasts that produce cementum of the root

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b Moulds the shape of roots and stimulates differentiation of odontoblasts

✓


c Given rise to odontoblasts that lay down dentin of the root

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dRemians as an essential constituents of the periodontal ligament

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Which of the following anomalies occur during the initiation and proliferation of tooth development ?


aAmelogenisis imperfecta

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b Dentinogenesis imperfecta

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cEnamel hypoplasia

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dOligodontia

✓


View Answer Oligodontia

Lip furrow band is______________?


aVestibular lamina

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b Successional lamina

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cDental lamina

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dBasal lamina

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View Answer Vestibular lamina

Temporary structures in enamel organ are (before enamel formation) ?


a Enamel knot

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bEnamel cord

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cBoth A and B

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dEnamel Cuticle

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View Answer Both A and B

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