Objective To evaluate the maxillary protraction appliance permanent teeth combined rapid expansion of early bone anterior crossbite effectiveness.
目的评价前方牵引器联合快速扩弓矫治恒牙早期骨性前牙反牙合的有效性。
Objective: To study the influence of anterior crossbite on the position and morphology of teeth.
目的：研究前牙反牙合对牙齿位置的影响及与牙齿形态的相关联系。
Conclusion: The possibility of ill-position and heteroplasia of teeth in maxilla increases in the patients with anterior crossbite.
结论：前牙反牙合使得上颌牙齿的错位及发育异常明显增加。
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