Oral Pathology and Medicine MCQs

Page No. 51

In a caries-free individual the saliva has_____________?


alow buffering capacity of acids


bMedium buffering capacity for acids


cHigh buffering capacity for acids


dIndependent of buffering capacity for acids



Chemico-parasitic theory of dental caries is proposed by______________?


aMiller


bG.V black


cGottlieb


dSchwartz


View Answer Miller

Pioneer bacteria in dental caries are in_____________?


aEnamel


bDentin


cPulp


dCementum


View Answer Dentin

Ammonia causes______________?


aIncrease in plaque formation


bIncrease in calculus formation


cDecrease in plaque formation


dCauses precipitation of salivary proteins



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


aDextranase and soluble dextran


bInsoluble dextan and glucosyl transferase


csoluble dextan and glucosyl transferase


dNone of the above



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


aGottlieb


bMiller


cSynder


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


cGemination


dNone of the above


View Answer Concrescence

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


aCongenital syphilis


bRickets


cAnhidrotic ectodermal dysplasia


dSupernumerary teeth


View Answer Rickets

Globulamaxillary cyst is______________?


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


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


cA cyst present between the midline of the palate


dA cyst present in the incisive canal



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


aFrey


bMelkerson-Rosenthal


cTeacher Collins


dNone of the above


View Answer Melkerson-Rosenthal

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