A. Smear layer
B. Fluid convection
C. Length of dentinal tubules
D. Diffusion coefficient
All factors govering dentine permeability EXCEPT_______________? Read More »
Dentin, Medical Mcqs, Oral Histology A. 0.2-0.5 microns
B. 2-3 microns
C. 0.2-0.3 microns
D. 7 microns
The average diameter of coronal dentinal tubules near the pulp is____________? Read More »
Dentin, Medical Mcqs, Oral Histology 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
All of the following is true about dentinal tubules except______________? Read More »
Dentin, Medical Mcqs, Oral Histology A. Incremental deposition
B. Peritubular dentin
C. Crowding of odontoblasts
D. Due to excess amount of organic component
S shape of dentinal tubules is due to______________? Read More »
Dentin, Medical Mcqs, Oral Histology A. Sclerotic dentin
B. Secondary dentin
C. Reparative dentin
D. All of the above
Dentin formed through out the life is______________? Read More »
Dentin, Medical Mcqs, Oral Histology A. Sclerotic dentin
B. Primary dentin
C. Secondary dentin
D. Interglobular dentin
Dentinal tubules are calcified in_______________? Read More »
Dentin, Medical Mcqs, Oral Histology A. Incremental lines of retzius
B. Incremental lines of vonebner
C. Contour lines of owen
D. None of the above
A. Ca3 (Po4)2 CaCo3
B. 3Ca (Po4)2 Ca(OH)2
C. CaPo4 Ca(OH)2
D. None of the above
Formula of hydroxyapatite crystal is____________? Read More »
Dentin, Medical Mcqs, Oral Histology A. Bone
B. Acellular cementum
C. Enamel
D. None of the above
Physically and chemically, the dentin is closely related to______________? Read More »
Dentin, Medical Mcqs, Oral Histology A. 1/2 that of enamel
B. 1/7 that of enamel
C. 1/4 that of enamel
D. 1/5 that of enamel
The microhardness of dentin is about____________? Read More »
Dentin, Medical Mcqs, Oral Histology