Oral Histology MCQs

Page No. 21

Which of the areas of the tooth is most sensitive during cavity preparation ?


a Enamel (anterior teeth)


b Enamel (Posterior teeth)


cDentin


dDentinoenamel junction



The cells that form secondary dentin are_______________?


aCementoblasts


b Fibroblasts


c Odontoblasts


dOsteoblasts


View Answer Odontoblasts

The organic lining of the calcified dentinal tubules is known as_______________?


aLamina propria


b Lamina lucida


cLamina limitans


dLamina densa


View Answer Lamina limitans

Korffs fibres are seen in______________?


aMantle dentin


bSecondary dentin


c Reactionary dentin


d Indeed dermal tubules


View Answer Mantle dentin

Tome’s firbres are____________?


aWith out but not with in the dentin


bOdontoblastic processes in dental tubules


cType of sharpey’s fibres


dOriginate from tome’s granular layer



The main bulk of dentin is formed by______________?


aPeritubular dentin


bMantle dentin


cInter tubular dentin


dPredentin


View Answer Inter tubular dentin

Inter globular dentin results due to_____________?


aFailure of coalescence of calcospherities


bFracture of the dentin


cArtifact in light microscopy


dDisturbance in dentinal tubules



Sclerotic dentin has following features_____________?


aCaries susceptible


b Insensitive


cHypersensitive


dResistant to caries


View Answer Resistant to caries

Shape of crown and the size of the roots is determined by______________?


aPulp


b Dentin


cEnamel


dCementum


View Answer Dentin

Organic portion can be separated from the mineral by_____________?


aIncineration/organic chelation


bDecalcification


cDevitrification


dCombustion



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