67.附圖X光片中,右上側門齒的牙根異常為何?
(A)牙根內吸收(internal root resorption)
(B)牙根外吸收(external root resorption)
(C)牙根齲齒(root caries)
(D)牙根斷裂(root fracture)
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統計: A(88), B(2), C(0), D(0), E(0) #3490095
統計: A(88), B(2), C(0), D(0), E(0) #3490095