A. Cracks
B. Ameloblasts
C. Odontoblasts
D. Hypocalcified rods
Related Mcqs:
- 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 - Ratio of diameter of enamel rods in the DEJ to the enamel surface is______________?
A. 1:4
B. 1:1
C. 1:2
D. 2:1 - Temporary structures in enamel organ are (before enamel formation) ?
A. Enamel knot
B. Enamel cord
C. Both A and B
D. Enamel Cuticle - Smooth surface caries is characterized by spread of caries in enamel and dentin as cones. These alignment in enamel and dentin is____________?
A. Base to base
B. Apex to base
C. Apex to apex
D. None of the above - The main bulk of dentin is formed by______________?
A. Peritubular dentin
B. Mantle dentin
C. Inter tubular dentin
D. Predentin - Superior vena cava is formed by______________?
A. Subclavian vein
B. Internal jugular vein
C. External jugular vein
D. Thoracic vein
E. Brachiocephalic - Nerve of pterygoid canal is formed by______________?
A. Symphathetic and lesser petrosal nerve
B. Symphatetic and greater superficial petrosal nerve
C. Chorda tympani
D. Jacobson’s nerve - Moth eaten appearance of of enamel is seen in____________?
A. Odontodysplasia
B. Amelogenisis stage
C. Desmolytic stage
D. Mottled enamel - Enamel rods at the cervical area at the occlusal edge and incisal lip in permanent teeth are______________?
A. Straight
B. Shallow
C. Bent
D. Curved - Non acidic, nonionic protein which helps in enamel mineralization _______________?
A. Tuftelin
B. Sheathlin
C. Enamelin
D. Amelogenin
