Oral Histology MCQs

Page No. 22

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


aInter tubular dentin

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bPeritubular dentin

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cCircum pulpal dentin

✓


d Secondary dentin

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View Answer Circum pulpal dentin

The pain transmission through dentin is______________?


aDirect neural stimulation

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bFluid or hydrodynamic theory

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cTransduction theory

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d All of the above

✓


View Answer All of the above

1st formed dental tissue______________?


aEnamel

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bDentin

✓


cCementum

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d Bone

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View Answer Dentin

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


aSclerotic dentin

✓


bMantal dentin

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cInterglobular dentin

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dIntertubular dentin

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View Answer Sclerotic dentin

Regarding teeth which statement is wrong ?


aEnamel is harder than dentine

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bEnamel has no cells

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cAmeloblast secrete enamel and dentine

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d Odontoblast produce dentin

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


aPrimary and secondary dentin

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bSecondary dentin and circumpulpal dentin

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c Tetiary dentin and sclerotic dentin

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dAll of the above

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


a Third power of the diameter

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bSixth power of the diameter

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cSquare of the diameter

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dFourth power of the diameter

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


a Predentin

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bMantle dentin

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c Interglobular dentin

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dTertiary dentin

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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

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b Direct neural stimulation

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cHydrodynamic theory

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dHydrostatic theory

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View Answer Hydrodynamic theory

One of the following statement is unique about circumpulpal dentine______________?


a Collagen fibers are oriented perpendicular to DEJ

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bVonkorff fibers are present

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cContain phosphophoryn

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dRequires matrix vesicle for mineralization

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View Answer Contain phosphophoryn

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