为了提高正畸治疗的稳定性,防止复发,人们采用了许多方法如过度矫治,避免过度扩弓,延长保持时间,但保持结束后经常可见牙弓长度宽度减小,前牙出现拥挤,覆(牙合)覆盖增大。曾有报道对应用Edgewise技术治疗后牙弓长期稳定性评价,但多集中于下颌。本研究对快速扩弓和Edgewise技术治疗后上下颌疗效的 In order to improve the stability of orthodontic treatment and prevent recurrence, many methods have been adopted, such as overcorrection, to avoid over-expansion, to prolong the retention time, but often reduce the length of the dental arch after the end of the treatment, Occlusal) coverage increases. There have been reports of long-term stability evaluation of dental arch using Edgewise technique, but most of them focused on the mandible. The present study evaluated the effect of maxillofacial surgery on rapid expansion and Edgewise techniques