80 以下那一種金屬局部覆蓋冠(metal partial crown)適用於上顎犬齒?
(A)3/4 牙冠(three-quarter crown)
(B)4/5 牙冠(four-fifth crown)
(C)7/8 牙冠(seven-eighth crown)
(D)鄰接面半冠(proximal-half crown)
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統計: A(341), B(9), C(4), D(24), E(0) #892301
統計: A(341), B(9), C(4), D(24), E(0) #892301