透明矫治器的减数正畸治疗

[摘要] 透明矫治器美观、舒适、卫生和方便，越来越受到患者的欢迎。计算机三维辅助方案设计，临床操作的简便而得到越来越多医生的关注。近年来随着口腔数字化技术和材料学的发展，临床医生经验的不断地积累，透明矫治器治疗的适应证不断扩大。另外，透明矫治器也存在对长距离牙移动控制力不足，牙移动实际情况和计算机矫治器方案存在差异等问题。本文从病例选择和治疗计划出发，阐述透明矫治器在减数正畸病例中应用的生物力学、支抗控制，矫治器设计，以及矫治风险，为正畸医师在使用透明矫治器矫治减数正畸病例提供参考。

Treating extraction cases with clear aligner

Abstract: Clear aligner treatment is more and more popular with patients because of its esthetic, comfort, clean and convenience. More and more doctors pay attention to clear aligner because of the three-dimensional computer aided program design and its simplicity in clinical operation. In recent years, with the development of dental digital technology and materials, more widely clinical application, orthodontists' experience has been constantly accumulated, and the indications of clear aligner treatment have been expanding. In addition, clear aligner also have some weakness, such as insufficient control over long-distance tooth movement, differences between actual tooth movement and computer simulation. Based on case selection and treatment plan, this article elaborates the biomechanics, anchorage control, appliance design and risk of clear aligner in extraction cases treatment. It provides a reference for orthodontists to use clear aligner to treat extraction cases well.