59 下列何者為最常治療下顎門齒復發(relapse)之矯正裝置?
(A)彈線固位器(spring retainer)
(B)周圍圍繞式固定器(wraparound retainer)
(C)哈立固位器(Hawley retainer)
(D)牙齒固位器(tooth positioner)
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統計: A(137), B(14), C(26), D(34), E(0) #899892
統計: A(137), B(14), C(26), D(34), E(0) #899892