下列哪种情况需要矫治后长期保持A.前牙反B.上颌中切牙间隙C.通过抑制上颌生长而完成的病例,患者生长发育期已过D.上下牙弓开展使阻生牙萌出进入...

作者: rantiku 人气: - 评论: 0
问题 下列哪种情况需要矫治后长期保持
选项 A.前牙反 B.上颌中切牙间隙 C.通过抑制上颌生长而完成的病例,患者生长发育期已过 D.上下牙弓开展使阻生牙萌出进入正常关系的牙列 E.以上都不是
答案 B
解析

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