28 眾多牙冠修復物中,下列何者最不適合當做牙橋的固位體(retainer)?
(A)嵌體(inlay)
(B)4/5 冠(4/5 crown)
(C)全鑄造冠(full cast crown)
(D)根柱冠(post crown)
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統計: A(71), B(9), C(1), D(58), E(0) #900771
統計: A(71), B(9), C(1), D(58), E(0) #900771