目前,橡皮圈的弹性作用,在正畸临床中已得到了广泛的重视和承认。作者在正畸临床上,发现了一例错误的应用橡皮圈而使牙齿脱位病例。现报告如下: 患者胡健,男,8岁。因1|1牙间隙在某医院正畸治疗二十余日,牙龈红肿,牙齿松动,前来就诊。病史:二十天前,患儿因1|1牙间隙(家长述 At present, the elastic role of rubber band in orthodontic clinics has been widely valued and recognized. In orthodontic clinical practice, the author found an incorrect case of tooth dislocation using a rubber band. Now report as follows: Patient Hu Jian, male, 8 years old. Due to 1 | 1 teeth gap in a hospital orthodontic treatment of more than twenty days, swollen gums, loose teeth, come to see a doctor. History: Twenty days ago, children with 1 | 1 teeth gap (parents described