49.臨床牙冠短,牙尖(cusp)已經削除2~3 mm時,若以汞齊復形,下列何種固位方式最適宜?
(A)溝槽(slots)
(B)小海灣(coves)
(C)固位閉鎖(retention locks)
(D)牙釘(pins)
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統計: A(151), B(25), C(53), D(90), E(0) #1035460
統計: A(151), B(25), C(53), D(90), E(0) #1035460