Oral Anatomy MCQs

Page No. 3

Mesial contact area of the permanent canine is at the______________?


aMiddle third


bJunction of the incisal and middle thirds


cJunction of the middle and cedrvical thirds


dNone of the above



Which of the following do not contribute to arch stability ?


aCusps


bRoot forms


cEmbrasures


dPeriodontal fibers


View Answer Embrasures

Contact areas of anterior teeth which are placed in centre of middle third ____________?


aMesial contacts of maxillary lateral and canine


bDistal contacts of maxillary centrals and laterals


cDistal contacts of maxillary laterals and canine


dMesial contacts of maxillary first and second premolar



Which four mandibular teeth are so aligned that when viewed from the occlusal, a straight line may be drawn bisecting the contact areas_____________?


a5,6,7,8


b4,5,6,7


c3,4,5,6


d2.3.4.5


View Answer 5,6,7,8

Which of the following are the unctions of contact areas______________?


aDistribution of occlusal stresses


bProtection of periodontium


cStabilization of dental arches


dAll of the above


View Answer All of the above

Buccal surface of posterior teeth are wider than lingual surface mesiodistally except in______________?


aMaxillary first molar


bMandibular second premolar


cMandibular first molar


dMaxillary second premolar


View Answer Maxillary first molar

Protective crests of contour on buccal and lingual surfaces are found______________?


aIn the middle third of the lingual


bNearest the occlusal third of the lingual


cIn the cervical third of the buccal


dBoth A and C


View Answer Both A and C

The interdental papilla is located in the______________?


aFacial embrasure


bLingual embrasure


cCervical embrasure


dOcclusal embrasure


View Answer Cervical embrasure

The primary centre of formation of each lobe is present in_____________?


aApex of the root


bTip of the cusp


cCentre of the crown


dCentre of the tooth


View Answer Tip of the cusp

In primates; a tooth with single conical cusp and single root is seen in________________?


aHaplodont


bHeterodont


cAcrodont


dThecodont


View Answer Haplodont

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