Medical MCQs

A. Aprismatic enamel
B. Prismatic enamel
C. Intertubular dentin
D. Intratubular dentin

A. Cracks
B. Pellicle
C. Perikymata
D. Enamel lamellae

A. 35%
B. 50%
C. 4%
D. 96%

A. 4 μ m
B. 9 μ m
C. 7 μ m
D. 2 μ m

A. they originate at right angle to dentin surface
B. they are almost vertical near the incisal edge (or) cusp tip areas
C. in the cervical third of deciduous crowns they are almost horizontal in direction
D. in cervical region of permanent teeth, they deviate in apical direction

A. Enamel
B. Dentin
C. Periodontal ligament
D. Cementum

A. It has only a small percent of organic content
B. Its formative cells are lost once it is completely formed
C. It is essentially a keratin tissue and has no blood vessels
D. It has no direct connection with the active cells of the dental pulp

A. Enamel matrix
B. Root
C. Cej
D. Dej

A. Enamel of deciduous incisiors
B. Enamel of permanent incisors
C. Enamel of premolars
D. Dentin of all teeth, as if is formed first

A. Bone
B. Enamel
C. Gingiva
D. Dentin