The average diameter of coronal dentinal tubules near the pulp is____________?

Related Mcqs:

1. Fluid flow, in or out of the dentinal tubules is proportional to the tuble diameter by______________?

   A. Third power of the diameter
   B. Sixth power of the diameter
   C. Square of the diameter
   D. Fourth power of the diameter

2. Dentinal tubules are______________?

   A. Concave
   B. Straight
   C. S0shaped
   D. None of the above

3. Mirgration of odontoblasts into dentinal tubules occurs during ________________?

   A. Cavity preparation
   B. Dehydration
   C. Water irrigation
   D. None of the above

4. Dentinal tubules are calcified in_______________?

   A. Sclerotic dentin
   B. Primary dentin
   C. Secondary dentin
   D. Interglobular dentin

5. S shape of dentinal tubules is due to______________?

   A. Incremental deposition
   B. Peritubular dentin
   C. Crowding of odontoblasts
   D. Due to excess amount of organic component

6. All of the following is true about dentinal tubules except______________?

   A. Inner pulpal layer contains more dentinal tubules than outer dentin layer
   B. The diameter of dentin tubules ranges from 5 to 7μm
   C. The diameter of dentinal tubule is more at pulpal layer than outer layer
   D. The bonding is more on the inner layer of dentin compared to outer surface

7. The organic lining of the calcified dentinal tubules is known as_______________?

   A. Lamina propria
   B. Lamina lucida
   C. Lamina limitans
   D. Lamina densa

8. Excess deposition of calcium in the dentinal tubules is referred to as______________?

   A. Sclerotic dentin
   B. Mantal dentin
   C. Interglobular dentin
   D. Intertubular dentin

9. The number of dentinal zones in dentinal caries is_____________?

   A. One
   B. Two
   C. Four
   D. Five

10. Early fusion of the coronal suture results in________________?

    A. Brachycephaly
    B. oxycephaly
    C. Trigonocephaly
    D. Scaphocephaly