Shape of enamel rod is______________?

Related Mcqs:

1. 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

2. Temporary structures in enamel organ are (before enamel formation) ?

   A. Enamel knot
   B. Enamel cord
   C. Both A and B
   D. Enamel Cuticle

3. 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

4. The diameter of the rod is______________?

   A. 4 μ m
   B. 9 μ m
   C. 7 μ m
   D. 2 μ m

5. 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

6. 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 capacity
   D. Most of organic component is lost during mineralization

7. The average width of enamel rods is______________?

   A. 10mm
   B. 5mm
   C. 2mm
   D. 0.5mm

8. Nutrition for ameloblasts after 1st layer of enamel is laid is______________?

   A. Dental sac
   B. Odontoblastic process
   C. Ree
   D. Dental Papilla

9. Enamel tufts are_______________?

   A. Thin tuft like structure extending from enamel surface of dentin enamel junction
   B. Tuft like structure arising from dentin-enamel junction towards enamel surface
   C. Odontoblastic processes extending into enamel
   D. None of the above

10. Dark bonds that are present in enamel rods at intervals of 4 μms are______________?

    A. Neonantal bands
    B. Cross striations
    C. Striae of Retzius
    D. Hunter-Schregar bands