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.Management Sciences
Category: Oral Histology
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
Ameloblasts is______________?
A. A cell from which tooth enamel is formed:
B. A tissue from which tooth erupts
C. A tumour of the jaw
D. Pertaining to dentin
The total volumes of all permanent pulp organ______________?
A. 0.38 cc
B. 0.58 cc
C. 0.02 cc
D. 3.8 cc
Cells occurring in greatest number in pulp are______________?
A. Cementoblasts
B. Fibroblasts
C. Osteoblasts
D. Ameloblasts
Hardness of fully mineralized cementum is_____________?
A. Less than dentin
B. More than dentin
C. Equal dentin
D. None of the above
Intermediate cementum is___________?
A. Between enamel and cementum
B. Found at dentinocemental junction
C. Apical third
D. Coronal third
Which of the following anomalies occur during the initiation and proliferation of tooth development ?
A. Amelogenisis imperfecta
B. Dentinogenesis imperfecta
C. Enamel hypoplasia
D. Oligodontia
Inorganic content of cementum is_____________?
A. Less than bone
B. More than bone
C. Equal to that of bone
D. More than that of enamel
Nutritional supply of the ameloblasts during most of their life cycle is from the_____________?
A. Dental pulp
B. Odontoblastic processes
C. Dental sac
D. Reduced dental organ
Chronological hypoplasia is_____________?
A. Hypoplasia of local origin
B. Hypoplasia of systemic origin
C. Hypoplasia of hereditary origin
D. None of the above
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