66 測量並計算牙周附連高度時,下列何種標誌物最不常被用到?
(A)牙骨質牙釉質交界(cementoenamel junction)
(B)黏膜牙齦交界(mucogingival junction)
(C)牙齦邊緣(gingival margin)
(D)囊袋底部(base of pocket)

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統計: A(2), B(14), C(3), D(1), E(0) #2736659