Synthesis of enamel matrix proteins occurs in the________________?
Synthesis of enamel matrix proteins occurs in the________________? A. Outer enamel epitheliumB. Ameloblast C. Stratum intermedium D. Stratum granulosum
Synthesis of enamel matrix proteins occurs in the________________? A. Outer enamel epitheliumB. Ameloblast C. Stratum intermedium D. Stratum granulosum
Enamel is laid down______________? A. Mainly by odontoblasts B. Mainly by ameloblasts C. Only on odontoblastsD. Only by ameloblasts
The striking difference between enamel and other mineralized tissues is______________? A. Presence of high percentage of organic matrix B. Presence of incremental lines C. Enamel has high reparative capacityD. Most of organic component is lost during mineralization
Formation of dentin by odontoblasts begins in_______________? A. Morphogenic stageB. Organizing stage C. Desmolytic stage D. Formative stage
Chronological hypoplasia is_____________? A. Hypoplasia of local originB. Hypoplasia of systemic origin C. Hypoplasia of hereditary origin D. None of the above
Dentino enamel junction is_________________? A. Non-scalloped B. StraightC. Scalloped and the convexities are directed towards dentin D. Scalloped and the convexities are directed towards enamel
True about direction of enamel rods______________? 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…
The diameter of the rod is______________? A. 4 μ m B. 9 μ m C. 7 μ m D. 2 μ m
Inorganic content of enamel is about______________? A. 35% B. 50% C. 4%D. 96%
calcification in enamel starts at____________? A. Enamel matrix B. Root C. CEJD. DEJ