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

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bResorption of roots of deciduous molars begins on their inner surfaces

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

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dNone of the above

✓


View Answer None of the above

perikymata are the external surface manifestations of_____________?


a Enamel rods

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b Incremental lines of retzius

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cNasmyth’s membrane

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d Pellicle

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The enamel of the posterior teeth is thickest at____________?


a Cervical third of buccal surface

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b Middle third of buccal surface

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cMiddle third of lingual surface

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d Occlusal surface

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View Answer Occlusal surface

Enamel tufts are_______________?


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

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

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cOdontoblastic processes extending into enamel

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dNone of the above

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


a 1:4

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b1:1

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c1:2

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d 2:1

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View Answer 1:1

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


aEnamel spindles

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bGnarled enamel

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cIncremental lies of woven

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dIncremental lines of retzius

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View Answer Gnarled enamel

All are true regarding the enamel spindles except____________?


aProduced by ameloblasts

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bFound in the region of cusps

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c Surrounded by inter prismatic enamel

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d Terminate as rounded process

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


a5 million

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b7 million

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c9 million

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d12 million

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View Answer 12 million

Neonatal lines are found in all of the following except____________?


aEnamel of primary incisors

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bEnamel of permanent canines

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cEnamel and dentin of permanent first molars

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dDentin of permanent mandibular incisors

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Which of the following structures is not of ectodermal origin_______________?


a Hunter schreger bands

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bEnamel spindles

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cEnamel tufts

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dEnamel lamellae

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View Answer Enamel spindles

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