67.下列何種方法最不易有牙周囊袋復發的情形?
(A)根向移位翻瓣術(apically positioned flap)
(B)牙齦下刮除術(subgingival curettage)
(C)改良式魏德曼翻瓣術(modified Widman flap)
(D)側移位翻瓣術(laterally positioned flap)
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統計: A(143), B(17), C(57), D(2), E(0) #1041924
統計: A(143), B(17), C(57), D(2), E(0) #1041924