Enamel

A. Enamel lamella
B. Enamel rod
C. Enamel spindle
D. Enamel tuft

A. Outer enamel epithelium
B. Ameloblast
C. Stratum intermedium
D. Stratum granulosum

A. Mainly by odontoblasts
B. Mainly by ameloblasts
C. Only on odontoblasts
D. Only by ameloblasts

A. Presence of high percentage of organic matrix
B. Presence of incremental lines
C. Enamel has high reparative capacity
D. Most of organic component is lost during mineralization

A. Morphogenic stage
B. Organizing stage
C. Desmolytic stage
D. Formative stage

A. Hypoplasia of local origin
B. Hypoplasia of systemic origin
C. Hypoplasia of hereditary origin
D. None of the above

A. Non-scalloped
B. Straight
C. Scalloped and the convexities are directed towards dentin
D. Scalloped and the convexities are directed towards enamel

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
E. All of the above

A. 4 μ m
B. 9 μ m
C. 7 μ m
D. 2 μ m

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