A. 25 μm
B. 50μm
C. 75μm
D. 100μm
Related Mcqs:
- Which teeth show less curvature on the crown above the cervical line than any other teeth_____________?
A. Maxillary anterior
B. Mandibular canine
C. Mandibular anteriors
D. Maxillary canine - Ratio of diameter of enamel rods in the DEJ to the enamel surface is______________?
A. 1:4
B. 1:1
C. 1:2
D. 2:1 - Temporary structures in enamel organ are (before enamel formation) ?
A. Enamel knot
B. Enamel cord
C. Both A and B
D. Enamel Cuticle - Smooth surface caries is characterized by spread of caries in enamel and dentin as cones. These alignment in enamel and dentin is____________?
A. Base to base
B. Apex to base
C. Apex to apex
D. None of the above - Difference between primary and permanent enamel is_______________?
A. In prism arrangement
B. in mineral content
C. No difference in enamel, difference in dentin
D. None of the above - The thickness of prismless enamel in diciduous teeth is______________?
A. 25 μ m
B. 50 μ m
C. 75 μ m
D. 100 μ m - Nutrition for ameloblasts after 1st layer of enamel is laid is______________?
A. Dental sac
B. Odontoblastic process
C. Ree
D. Dental Papilla - Maxillary primary cuspid enamel completion takes place at______________?
A. 6 months in utero
B. 6 months after birth
C. 9 months in utero
D. 9 months after birth - Roots of primary and secondary teeth are different in that the primary roots are more divergent and flaring. The other difference _____________?
A. Primary roots show less a accessory and lateral canals
B. Primary roots resorb more easily
C. Primary roots are shorter
D. None of the above - The primary germ layer endoderm is derived from_____________?
A. Embryonal disc
B. Yolk sac
C. Amniotic cavity
D. Palacenta
