Oral Anatomy MCQs

Page No. 2

Posterior embrasures are generally larger on the lingual than on the facial, with the contact area within the facial moiety, except between maxillary_______________?


aPremolars


b1st and 2nd molar


c1st premolar and cane


dFirst molar and 2nd premolar



All are true about calciotraumatic line, except______________?


aDue to caries


bDue to death of odontoblastic layer


cIt remains after caries is removed


dBecause of odontoblastic migration from cell rich zone



The faciolingual angulation of the upper central incisor is approximately___________________?


a20°


b28°


c33°


d38°


View Answer 28°

The biting forces at molar region during mastication is_______________?


a20 to 55 pounds


b30 to 75pounds


c50 to 75pounds


d90 to 200 pounds


View Answer 90 to 200 pounds

All embrasure spaces are reflection of the______________?


aForm of the teeth involved


bSize of the teeth involved


cEruption sequence involved


dNone of the above



The embrasure areas in the following areas are contentious______________?


aLabial and lingual


bLingual and Occlusal


cIncisal and Occlusal


dLabial and occlusal


View Answer Labial and lingual

Largest embrasure lies between______________?


aMaxillary central incisors


bMaxillary central and lateral incisor


cMaxillary canine and first premolar


dMaxillary lateral incisor and canine



The tooth that is commonly seen in an abnormal relation and contact with its adjacent teeth of the same arch is ________________?


aMandibular first premolar


bMandibular lateral incisor


cMaxillary central incisor


dMaxillary lateral incisor



The contact area on the distal surface of a maxillary first premolar should be placed in________________?


aMiddle 3rd of proximal surface with lingual embrasure greater than the facial embrasure


bOcclusal 3rd of proximal surface with the lingual embrasure greater than facial embrasure


cOcclusal 3rd of proximal surface with facial embrasure greater than lingual embrasure


dMiddle 3rd with facial embrasure greater than the lingual embrasure



Distal contact of upper first premolar is________________?


aLower than mesial contact area


bLittle cervical to junction of occlusal and middle third of crown


cHigher than mesial contact area


dA and B


View Answer A and B

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