Oral Histology MCQs

Page No. 22

The type of dentin that is formed prior to root completion______________?


aInter tubular dentin


bPeritubular dentin


cCircum pulpal dentin


d Secondary dentin


View Answer Circum pulpal dentin

The pain transmission through dentin is______________?


aDirect neural stimulation


bFluid or hydrodynamic theory


cTransduction theory


d All of the above


View Answer All of the above

1st formed dental tissue______________?


aEnamel


bDentin


cCementum


d Bone


View Answer Dentin

Excess deposition of calcium in the dentinal tubules is referred to as______________?


aSclerotic dentin


bMantal dentin


cInterglobular dentin


dIntertubular dentin


View Answer Sclerotic dentin

Regarding teeth which statement is wrong ?


aEnamel is harder than dentine


bEnamel has no cells


cAmeloblast secrete enamel and dentine


d Odontoblast produce dentin



The formation of which of the following does not represent normal physiologiacl process of dentin formation_______________?


aPrimary and secondary dentin


bSecondary dentin and circumpulpal dentin


c Tetiary dentin and sclerotic dentin


dAll of the above



Fluid flow, in or out of the dentinal tubules is proportional to the tuble diameter by______________?


a Third power of the diameter


bSixth power of the diameter


cSquare of the diameter


dFourth power of the diameter



In adult teeth, the type of dentin present underlying dentin-enamel junction is_______________?


a Predentin


bMantle dentin


c Interglobular dentin


dTertiary dentin


View Answer Mantle dentin

The most accepted theory for dentin sensitivity is: or Which of the following is the most accepted theory of transmission of dental sensation_____________?


aTransduction theory


b Direct neural stimulation


cHydrodynamic theory


dHydrostatic theory


View Answer Hydrodynamic theory

One of the following statement is unique about circumpulpal dentine______________?


a Collagen fibers are oriented perpendicular to DEJ


bVonkorff fibers are present


cContain phosphophoryn


dRequires matrix vesicle for mineralization


View Answer Contain phosphophoryn

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