Oral Histology MCQs

Page No. 26

At the CEJ cementum overlaps enamel about____________?


a55 to 60%


b60 to 65%


c 65 to 70%


d70 to 75%


View Answer 60 to 65%

Trauma or excessive occlusal forces causes_____________?


aHyperplasia of cementum


bHypertrophy of cementum


cResorption of cementum


dNone of the above



Root lengthening is contributed by____________?


aCellular cementum


bAcellular cementum


cIntermediate cementum


dAll of the above


View Answer Cellular cementum

Which of the following is least mineralized ?


aCementoid


b Incremental line


cCellular cementum


dAcellular cementum


View Answer Cementoid

Which dental tissue doesn’t contain nerves ?


a Bone


bDentin


c Cementum


dPulp


View Answer Cementum

The periodontal ligament_____________?


aDerives its blood supply primarily from the branches of vessels entering the pulp


bHas a slow rate of turn over


cContains epithelial cells


dComprises primarily of type II collagen



Anchoring fibrills are composed of_____________?


aType V and VII collagen


bType I and III collagen~~~


cType IV collagen


dType IV and III Collagen



Remnants of the Hertwig’s root sheath are found in____________?


aGingiva


bAlveolar bone


cPeriodontal ligament


d Cementum


View Answer Periodontal ligament

All of the following cells of periodontal ligament are of mesenchymal origin except______________?


aFibroblasts


bMulti totipotent cells


cCementoblasts


d Cell rests of malassez



The vascular supply of the periodontal ligament is______________?


aGreatest in the middle-third of a single rotted tooth


bGreatest in the middle-third of a multirooted tooth


c A net like plexus that runs closer to the cementum than to the bone


dA net like plexus that runs closer to the bone than to the cementum



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