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.Management Sciences
Category: Oral Histology
1st formed dental tissue______________?
A. Enamel
B. Dentin
C. Cementum
D. Bone
Which of the following groups of fibres are not attached to alveolar bone ?
A. Transseptal
B. Horizontal
C. Oblique
D. Apical
Tooth eruption is due to______________?
A. Osteoclastic activity
B. Proliferation of cells at crypt
C. Exforliation of primary tooth
D. Eruptive force
Cementum_____________?
A. Is derived from the sheath of hertwig
B. Is acellular in the apical third of the tooth
C. Often overlaps the enamel
D. Does not contain collagen fibres
Reestablishing the former outline of the root surface is_____________?
A. Anatomic repair
B. Functional repair
C. Physiological repair
D. Hyperplasia
Pain originate in the pulp due to_________?
A. free nerve ending in cell rich zone
B. free nerve ending at sub odontoblastic layer
C. Krause bulb at the center of the pulp
D. Meisseners corpuscles at cell rich zone
The rest of malassez in the periodontal ligament are derived from_____________?
A. Dental pulp
B. Lamina propria
C. Odontogenic epithelium
D. Vestibular lamina
Enamel is laid down______________?
A. Mainly by odontoblasts
B. Mainly by ameloblasts
C. Only on odontoblasts
D. Only by ameloblasts
Epithelial attachment is derived from____________?
A. Reduced enamel epithelium
B. Dental papilla
C. Inner enamel epithelium
D. Dental sac
Which of the following is not present in saliva________________?
A. Lysozyme
B. Phosphate
C. Bicarbonate
D. Trypsin
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