27.下列何種正顎手術之移動,最容易造成鼻形不良改變(deleterious effects)?
(A)上顎前齒區下移3 mm合併5°順時針旋轉
(B)上顎前齒區前移4 mm並上移4 mm
(C)魏斯曼氏前上顎截骨術(Wassmünd anterior maxillary osteotomy)後退5 mm
(D)上顎臼齒區上移3 mm合併5°順時針旋轉
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統計: A(17), B(149), C(38), D(15), E(0) #1035518
統計: A(17), B(149), C(38), D(15), E(0) #1035518