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.Management Sciences
Category: Dentin
Which of the following is correct?
A. Reparative dentin is characterized by having fewer and more twisted tubules than normal dentin and may include odontoblasts
B. Dead tracts appear black in transmitted and white in reflected ligth
C. Sclerotic transparent dentin appears transparent or light in transmitted light and dark in reflected light
D. All of the above
1st formed dental tissue______________?
A. Enamel
B. Dentin
C. Cementum
D. Bone
The cells that form secondary dentin are_______________?
A. Cementoblasts
B. Fibroblasts
C. Odontoblasts
D. Osteoblasts
The dentin adjacent to the dentinoenamel junction is called the______________?
A. Mantle dentin
B. Circumpulpal dentin
C. Predentin
D. Secondary dentin
The average diameter of coronal dentinal tubules near the pulp is____________?
A. 0.2-0.5 microns
B. 2-3 microns
C. 0.2-0.3 microns
D. 7 microns
Korffs fibres are seen in______________?
A. Mantle dentin
B. Secondary dentin
C. Reactionary dentin
D. Indeed dermal tubules
During the formation of primary teeth_______________?
A. Enamel forms more cervically than dentin
B. Enamel forms faster than dentin
C. Dentin forms faster than enamel
D. Processes of their cells remain in content with each other
The main bulk of dentin is formed by______________?
A. Peritubular dentin
B. Mantle dentin
C. Inter tubular dentin
D. Predentin
Inter globular dentin results due to_____________?
A. Failure of coalescence of calcospherities
B. Fracture of the dentin
C. Artifact in light microscopy
D. Disturbance in dentinal tubules
Dentinal tubules are______________?
A. Concave
B. Straight
C. S0shaped
D. None of the above
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