Medical MCQs

A. Enamel of primary incisors
B. Enamel of permanent canines
C. Enamel and dentin of permanent first molars
D. Dentin of permanent mandibular incisors

A. Hunter schreger bands
B. Enamel spindles
C. Enamel tufts
D. Enamel lamellae

A. Enamel
B. Dentin
C. Cementum
D. Periodontal ligament

A. Tono filament
B. Keratin like fibre
C. Collagen fibre
D. Vimentin filament

A. 2.8
B. 3.8
C. 4.8
D. 2.3

A. Greater than the thickness of enamel
B. Less than the thickness of enamel
C. Equal to the thickness of enimal
D. None of the above

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. Enamel spindles
B. Enamel lamella
C. Enamel tufts
D. Perikymata

A. Cervical third of buccal surface
B. Middle third of buccal surface
C. Middle third of lingual surface
D. Occlusal surface

A. Thin tuft like structure extending from enamel surface of dentin enamel junction
B. Tuft like structure arising from dentin-enamel junction towards enamel surface
C. Odontoblastic processes extending into enamel
D. None of the above