Oral Histology MCQs

Page No. 9

Which of the following statement is false______________?


a Resorption of roots of deciduous incisors and canines begins on their lingual surfaces


bResorption of roots of deciduous molars begins on their inner surfaces


cShedding of deciduous teeth is delayed in the absence of their successor teeth


dNone of the above


View Answer None of the above

perikymata are the external surface manifestations of_____________?


a Enamel rods


b Incremental lines of retzius


cNasmyth’s membrane


d Pellicle



The enamel of the posterior teeth is thickest at____________?


a Cervical third of buccal surface


b Middle third of buccal surface


cMiddle third of lingual surface


d Occlusal surface


View Answer Occlusal surface

Enamel tufts are_______________?


a Thin tuft like structure extending from enamel surface of dentin enamel junction


bTuft like structure arising from dentin-enamel junction towards enamel surface


cOdontoblastic processes extending into enamel


dNone of the above



Ratio of diameter of enamel rods in the DEJ to the enamel surface is______________?


a 1:4


b1:1


c1:2


d 2:1


View Answer 1:1

Interwining of the enamel rods at the cusp timps and the incisal edges of a tooth is called______________?


aEnamel spindles


bGnarled enamel


cIncremental lies of woven


dIncremental lines of retzius


View Answer Gnarled enamel

All are true regarding the enamel spindles except____________?


aProduced by ameloblasts


bFound in the region of cusps


c Surrounded by inter prismatic enamel


d Terminate as rounded process



Approximately how many enamel rods will be present in a maxillary molar ?


a5 million


b7 million


c9 million


d12 million


View Answer 12 million

Neonatal lines are found in all of the following except____________?


aEnamel of primary incisors


bEnamel of permanent canines


cEnamel and dentin of permanent first molars


dDentin of permanent mandibular incisors



Which of the following structures is not of ectodermal origin_______________?


a Hunter schreger bands


bEnamel spindles


cEnamel tufts


dEnamel lamellae


View Answer Enamel spindles

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