Oral Histology

A. Osteoclastic activity

B. Proliferation of cells at crypt

C. Exforliation of primary tooth

D. Eruptive force

A. Lacunae

B. Coupling

C. Reversal lines

D. Canaliculi

A. In cross sections enamel rods appear hexagonal and resembles fish scales

B. The bodies of rods are near occlusal and incisal surfaces, where as the tails point cervically

C. The apatite crystals are parallel to bodies and deviate 65° from the tails

D. All of the above

A. Internal basal lamina

B. Junctional epithelium

C. Reduced enamel epithelium

D. Epithelial attachment

A. Twisted

B. Curved

C. Pulp chamber

D. Lateral canal

A. Mantle dentin

B. Circumpulpal dentin

C. Predentin

D. Secondary dentin

A. Sensory function

B. Secretory function

C. Neuro sensory

D. Nutritive function

A. Straight

B. Shallow

C. Bent

D. Curved

A. Increased fibrotic component

B. Decreased cellular component

C. Calcification in blood vessels near apical foramen

D. All of the above

A. Sharpey’s fibres

B. Tomes fibres

C. Elastic fibres

D. Ray’s fibres