试题与答案

对于初诊时尖牙唇侧错位的患者,适用的活动保持器是A.Hawley保持器 B.改良Ha

题型:单项选择题

题目:

对于初诊时尖牙唇侧错位的患者,适用的活动保持器是

A.Hawley保持器

B.改良Hawley保持器I型

C.Hawley保持器Ⅱ型

D.改良Hawley保持器Ⅲ型

E.牙齿正位器

答案:

参考答案:D

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