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
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
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