胶圈直接关闭中切牙间隙导致牙脱位及严重错合的矫治周嫣，曹雪梅，苏强安，黄丽采，刘京阳一、矫治前情况：９２年９月至９４年５月间，我科共收治了两名因胶圈直接关闭中切牙间隙而导致牙脱位及严重错的患者。检者：均为恒牙早期，临床表现：明显前突、伸长，覆盖于下唇... Apron direct closure of the incisors lead to tooth dislocation and serious mismatch correction Zhou Yan, Cao Xuemei, Su Qiang, Huang Li mining, Liu Jingyang a, before the correction: September 92 to May 94, our department were treated Two patients who had their teeth dislocated and severely wrong because of the rubber ring directly closing the incisor gap. Detector: are early permanent teeth, clinical manifestations: obvious protrusion, elongation, covering the lower lip ...