56.下列那些可以達到新生附連(new attachment)?①牙釉基質蛋白衍生物(enamel matrix protein derivative) ②骨移植(bone graft) ③引導組織再生術(GTR) ④改良式魏德曼翻 瓣術(modified Widman flap)
(A)①②
(B)①③
(C)②③
(D)②④

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統計: A(12), B(127), C(21), D(1), E(0) #1038050