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.Management Sciences
Category: Oral Histology
Intermediate cementum is____________?
A. Highly defined cellular zone near cemento – dentinal junction (CDJ)
B. Highly defined fibrillar zone near CDJ
C. Poorly defined zone near cemento-dentinal junction
D. Both a and B
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
Hunter Schreger band are____________?
A. Dark and light bands of enamel seen in longitudinal ground section
B. Dark and light bands of enamel seen in horizontal ground section
C. Dark and light brands of dentin seen in longitudinal section
D. Dark and light bands of dentin seen in horizontal
Stratum germinatum is_______________?
A. Stratum basale
B. Stratum granulosum
C. Stratum basale and parabasal spinous cells
D. Stratum spinosum
Organic portion can be separated from the mineral by_____________?
A. Incineration/organic chelation
B. Decalcification
C. Devitrification
D. Combustion
Which of the following structures is not of ectodermal origin_______________?
A. Hunter schreger bands
B. Enamel spindles
C. Enamel tufts
D. Enamel lamellae
The key hole, pattern appearance in the cross section is feature of______________?
A. Aprismatic enamel
B. Prismatic enamel
C. Intertubular dentin
D. Intratubular dentin
Dendritic cell located in the stratified squamous keratinizing epithelium of the oral cavity include_____________?
A. Keratinocytes
B. Mast cells
C. Melanocytes
D. Myoepithelila cells
All factors govering dentine permeability EXCEPT_______________?
A. Smear layer
B. Fluid convection
C. Length of dentinal tubules
D. Diffusion coefficient
Excess deposition of calcium in the dentinal tubules is referred to as______________?
A. Sclerotic dentin
B. Mantal dentin
C. Interglobular dentin
D. Intertubular dentin
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