Oral Pathology and Medicine MCQs

Page No. 51

In a caries-free individual the saliva has_____________?


alow buffering capacity of acids

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bMedium buffering capacity for acids

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cHigh buffering capacity for acids

✓


dIndependent of buffering capacity for acids

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Chemico-parasitic theory of dental caries is proposed by______________?


aMiller

✓


bG.V black

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cGottlieb

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dSchwartz

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View Answer Miller

Pioneer bacteria in dental caries are in_____________?


aEnamel

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bDentin

✓


cPulp

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dCementum

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View Answer Dentin

Ammonia causes______________?


aIncrease in plaque formation

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bIncrease in calculus formation

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cDecrease in plaque formation

✓


dCauses precipitation of salivary proteins

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Initiation of caries by streptococcus mutans is by the production of______________?


aDextranase and soluble dextran

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bInsoluble dextan and glucosyl transferase

✓


csoluble dextan and glucosyl transferase

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dNone of the above

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Animals maintained in germ free environmental did not develop caries even when fed on a high carbohydrate diet is given by_____________?


aGottlieb

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bMiller

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cSynder

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dOrland and Fizgerald

✓


View Answer Orland and Fizgerald

A union of the roots of adjacent teeth through the cementum is referred to as_____________?


aConcrescence

✓


bFusion

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cGemination

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dNone of the above

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View Answer Concrescence

Peg-shaped incisors which taper towards the incisal edge are typically seen in all of the following conditions EXCEPT______________?


aCongenital syphilis

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bRickets

✓


cAnhidrotic ectodermal dysplasia

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dSupernumerary teeth

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View Answer Rickets

Globulamaxillary cyst is______________?


aSoft tissue cyst present often between maxillary Lateral incisor and cuspid teeth

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bOften present between incisor and cuspid teeth but is a bone cyst

✓


cA cyst present between the midline of the palate

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dA cyst present in the incisive canal

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Facial edema, cheilitis granulomatosa and a fissured tongue characterize which of the following syndromes ?


aFrey

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bMelkerson-Rosenthal

✓


cTeacher Collins

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dNone of the above

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View Answer Melkerson-Rosenthal

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