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Medical Mcqs
Dentino enamel junction is_________________?
A. Non-scalloped
B. Straight
C. Scalloped and the convexities are directed towards dentin
D. Scalloped and the convexities are directed towards enamel
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Cementicles are found in the_____________?
A. Gingiva
B. Periodontal ligament
C. Alveolar bone
D. Cementum
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Lactobacilli are numerous in caious lesions because they______________?
A. Are the main causative agent
B. Can produce insoluble extracellular polysaccharides
C. Can attack to smooth enamel surfaces
D. Are secondary invaders
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Accentuated incremental lines in dentin are______________?
A. Incremental lines of retzius
B. Incremental lines of von ebner
C. Contour lines lines of owen
D. None of the above
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All are true regarding the enamel spindles except____________?
A. Produced by ameloblasts
B. Found in the region of cusps
C. Surrounded by inter prismatic enamel
D. Terminate as rounded process
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The dentin adjacent to the dentinoenamel junction is called the______________?
A. Mantle dentin
B. Circumpulpal dentin
C. Predentin
D. Secondary dentin
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Gubernacular canal guides the eruption of_____________?
A. Primary teeth
B. Permanent teeth
C. Both a and b
D. None of the above
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