Enamel Mcqs
Q.1: perikymata are the external surface manifestations of_____________?C
A. Enamel rods
B. Incremental lines of retzius
C. Nasmyths membrane
D. Pellicle
Q.2: The enamel of the posterior teeth is thickest at____________?=
A. Cervical third of buccal surface
B. Middle third of buccal surface
C. Middle third of lingual surface
D. Occlusal surface
Q.3: Enamel tufts are_______________?
A. Thin tuft like structure extending from enamel surface of dentin enamel junctionP
B. Tuft like structure arising from dentin-enamel junction towards enamel surfaceN
C. Odontoblastic processes extending into enamel-
D. None of the above
Q.4: Ratio of diameter of enamel rods in the DEJ to the enamel surface is______________?S
A. 1:4
B. 1:1
C. 1:2
D. 2:1
Q.5: Interwining of the enamel rods at the cusp timps and the incisal edges of a tooth is called______________?j
A. Enamel spindles
B. Gnarled enamel
C. Incremental lies of woven
D. Incremental lines of retzius
Q.6: All are true regarding the enamel spindles except____________?>
A. Produced by ameloblasts
B. Found in the region of cusps
C. Surrounded by inter prismatic enamel$
D. Terminate as rounded process
Q.7: Approximately how many enamel rods will be present in a maxillary molar ?I
A. 5 million
B. 7 million
C. 9 million
D. 12 million
Q.8: Neonatal lines are found in all of the following except____________?D
A. Enamel of primary incisors
B. Enamel of permanent canines
C. Enamel and dentin of permanent first molars+
D. Dentin of permanent mandibular incisors'
Q.9: Which of the following structures is not of ectodermal origin_______________?M
A. Hunter schreger bands
B. Enamel spindles
C. Enamel tufts
D. Enamel lamellae
Q.10: Which of the following tissues have no reparative capacity______________?I
A. Enamel
B. Dentin
C. Cementum
D. Periodontal ligament

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