27 鄰接面牙釉質表面齲蝕通常位於:
(A)接觸區上(at the contact area)
(B)接觸區的顏面方向(facial to the contact area)
(C)接觸區的舌面方向(lingual to the contact area)
(D)接觸區的牙齦面方向(gingival to the contact area)
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統計: A(4), B(0), C(0), D(7), E(0) #2098826
統計: A(4), B(0), C(0), D(7), E(0) #2098826