A. Sclerotic dentin
B. Secondary dentin
C. Reparative dentin
D. All of the above
0
Dentinal tubules are calcified in_______________?
0
Accentuated incremental lines in dentin due to disturbances in matrix and mineralization process is_____________?
A. Sclerotic dentin
B. Primary dentin
C. Secondary dentin
D. Interglobular dentin
0
Formula of hydroxyapatite crystal is____________?
A. Incremental lines of retzius
B. Incremental lines of vonebner
C. Contour lines of owen
D. None of the above
0
Physically and chemically, the dentin is closely related to______________?
A. Ca3 (Po4)2 CaCo3
B. 3Ca (Po4)2 Ca(OH)2
C. CaPo4 Ca(OH)2
D. None of the above
0
The microhardness of dentin is about____________?
A. Bone
B. Acellular cementum
C. Enamel
D. None of the above
0
Dentinogenesis by odontoblasts first begins at_____________?
A. 1/2 that of enamel
B. 1/7 that of enamel
C. 1/4 that of enamel
D. 1/5 that of enamel
0
The zone of dentin most recently formed and uncalcified is known as____________?
A. Pulpal end
B. Cusp tip
C. Tooth bud stage
D. Cervical area
0
The dentin receptors are unique because_____________?
A. Mantle dentin
B. Circumpulpal dentin
C. Predentin
D. Secondary dentin
0
Mirgration of odontoblasts into dentinal tubules occurs during ________________?
A. They elicit pain to hot and cold
B. They elicit pain to touch and pressure
C. They elicit pain to chemicals
D. Elicit only pain as a response
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