A. 0.2-0.5 microns
B. 2-3 microns
C. 0.2-0.3 microns
D. 7 microns
Related Mcqs:
- 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 - Dentinal tubules are______________?
A. Concave
B. Straight
C. S0shaped
D. None of the above - Mirgration of odontoblasts into dentinal tubules occurs during ________________?
A. Cavity preparation
B. Dehydration
C. Water irrigation
D. None of the above - Dentinal tubules are calcified in_______________?
A. Sclerotic dentin
B. Primary dentin
C. Secondary dentin
D. Interglobular dentin - 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 - 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 - The organic lining of the calcified dentinal tubules is known as_______________?
A. Lamina propria
B. Lamina lucida
C. Lamina limitans
D. Lamina densa - Excess deposition of calcium in the dentinal tubules is referred to as______________?
A. Sclerotic dentin
B. Mantal dentin
C. Interglobular dentin
D. Intertubular dentin - The number of dentinal zones in dentinal caries is_____________?
A. One
B. Two
C. Four
D. Five - Early fusion of the coronal suture results in________________?
A. Brachycephaly
B. oxycephaly
C. Trigonocephaly
D. Scaphocephaly
