(A) They originate at right angle to dentin surface
(B) They are almost vertical near the incisal edge [or] cusp tip areas
(C) In the cervical third of deciduous crowns they are almost horizontal in direction
(D) ALL OF THESE
(A) They originate at right angle to dentin surface
(B) They are almost vertical near the incisal edge [or] cusp tip areas
(C) In the cervical third of deciduous crowns they are almost horizontal in direction
(D) ALL OF THESE
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