Dentinal tubules are calcified in_______________?
Dentinal tubules are calcified in_______________? A. Sclerotic dentin B. Primary dentin C. Secondary dentin D. Interglobular dentin
Dentinal tubules are calcified in_______________? A. Sclerotic dentin B. Primary dentin C. Secondary dentin D. Interglobular dentin
Accentuated incremental lines in dentin due to disturbances in matrix and mineralization process is_____________? A. Incremental lines of retzius B. Incremental lines of vonebnerC. Contour lines of owen D. None of the above
Formula of hydroxyapatite crystal is____________? A. Ca3 (Po4)2 CaCo3B. 3Ca (Po4)2 Ca(OH)2 C. CaPo4 Ca(OH)2 D. None of the above
Physically and chemically, the dentin is closely related to______________? A. Bone B. Acellular cementum C. Enamel D. None of the above
The microhardness of dentin is about____________? A. 1/2 that of enamel B. 1/7 that of enamelC. 1/4 that of enamel D. 1/5 that of enamel
Dentinogenesis by odontoblasts first begins at_____________? A. Pulpal endB. Cusp tip C. Tooth bud stage D. Cervical area
The zone of dentin most recently formed and uncalcified is known as____________? A. Mantle dentin B. Circumpulpal dentinC. Predentin D. Secondary dentin
The dentin receptors are unique because_____________? A. They elicit pain to hot and cold B. They elicit pain to touch and pressure C. They elicit pain to chemicalsD. Elicit only pain as a response
Mirgration of odontoblasts into dentinal tubules occurs during ________________? A. Cavity preparation B. Dehydration C. Water irrigation D. None of the above
The dentin adjacent to the dentinoenamel junction is called the______________? A. Mantle dentin B. Circumpulpal dentin C. Predentin D. Secondary dentin