Oral Histology MCQs

Page No. 24

Which of the following is correct?


aCementum is more resistant to resorption than bone

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bBone is more resistant to resorption than cementum

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cBoth are equally resorbable

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dNone of the above

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Intermediate cementum is___________?


aBetween enamel and cementum

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bFound at dentinocemental junction

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cApical third

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dCoronal third

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Reestablishing the former outline of the root surface is_____________?


a Anatomic repair

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bFunctional repair

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c Physiological repair

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d Hyperplasia

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View Answer Anatomic repair

Which of the following statement is true______________?


aCementum is thinnest at CEJ (20-50μm)

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bCementum is thickest towards the apex (150-200μm)

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cThe apical foramen is surrounded by cementum

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dAll of the above

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View Answer All of the above

The region in which cementum formation is most rapid is_____________?


aMiddle

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bCoronal

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cApical

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dInterradicular

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View Answer Middle

Inorganic content of cementum is______________?


a45 to 50%

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b50 to 55%

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c55 to 60%

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d60 to 65%

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View Answer 45 to 50%

Intermediate cementum is____________?


aHighly defined cellular zone near cemento – dentinal junction (CDJ)

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bHighly defined fibrillar zone near CDJ

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cPoorly defined zone near cemento-dentinal junction

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dBoth a and B

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The cementuoenamel junction is approximately at the level at which the root canal becomes_____________?


aTwisted

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b Curved

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cPulp chamber

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dLateral canal

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View Answer Pulp chamber

Which of the following is true of cellular cementum ?


a Forms during root formation

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bForms after the eruption of the tooth

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cSeen at the coronal portion of the tooth

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dFormation is a slow process

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Hardness of fully mineralized cementum is_____________?


aLess than dentin

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bMore than dentin

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cEqual dentin

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dNone of the above

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View Answer Less than dentin

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