牙列拥挤在牙畸形中最常见,通常根据牙列拥挤程度来决定治疗方案,如拥挤度在6mm以下者不拔牙矫治,可采用邻面去釉、扩大牙弓或推磨牙向后等方法矫治。本文采用螺旋弹簧开展间隙排齐牙列法不拔牙矫治安氏I类错,经矫治前后头影测量分析显示达到了矫治效果。报告如下。 Dental crowding crowded in the most common deformity, usually based on the degree of crowding to determine the treatment options, such as less than 6mm crowding degree without extraction treatment, can be used to remove glaze, enlarging the dental arch or molars backward and other methods Correction. In this paper, the use of spiral spring gap arrangement dentition extraction method does not pull the Class I malocclusion, cephalometry analysis before and after correction showed that the treatment effect. The report is as follows.