25.下列那種上顎主連接體(major connector)的設計最缺乏剛性(rigidity)?
(A)全腭覆蓋式(complete palatal coverage)
(B)前後腭帶式(anterior-posterior palatal strap)
(C)單腭帶式(single palatal strap)
(D)U形腭板(U-palatal plate)
答案:登入後查看
統計: A(16), B(6), C(176), D(456), E(0) #1153141
統計: A(16), B(6), C(176), D(456), E(0) #1153141