71.當牙周囊袋超過黏膜牙齦交界,並有厚且可處理的牙周囊袋壁(manageable pocket walls),最適當的手術 方法為下列何者?
(A)根向移位翻瓣術(apically displaced flap)
(B)游離牙齦移植術(free gingival graft)
(C)皮下結締組織移植術(subepithelial connective tissue graft)
(D)側移位翻瓣術(laterally positioned flap)

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統計: A(7), B(2), C(8), D(0), E(0) #3974310