Int J Stomatol ›› 2022, Vol. 49 ›› Issue (1): 109-115.doi: 10.7518/gjkq.2022009

• Orginal Article • Previous Articles     Next Articles

Research progress on the mechanism and efficacy of molar distalization with clear aligner technique

Li Junlin(),Xiao Liwei()   

  1. Center of Stomatology, The Second Xiangya Hospital of Central South University, Changsha 410011, China
  • Received:2021-03-02 Revised:2021-09-20 Online:2022-01-01 Published:2022-01-07
  • Contact: Liwei Xiao;


As a novel orthodontic treatment technology, the clear aligner technique is favored by patients and dentists for its aesthetic, comfort and convenient features. After more than ten years of technical improvement and material update, the efficacy of clear aligner technique is gradually optimized. Through its special way of applying orthodontic force, in addition to the torque and the anchorage control of attachment and auxiliary devices,the molars distally move with nearly bodily movement, meanwhile avoiding the mandibular rotation and reducing anchorage loss of the anterior teeth. This article reviews the mechanism and efficacy of clear aligner technique in molar distalization treatment, and points out the deficiencies in current research and the limitations in clinical application, providing a reference for clinical application and technical improvement.

Key words: clear aligner technique, molar distalization, mechanism, clinical efficacy, orthodontic


Tab 1

Analysis of the effect of molar distalization using clear aligner"

参考文献 年代 研究类型 研究对象
对照设计 测量方式 矫治方式
[21] 2011 回顾性研究 5例,平均21.5岁 三维模型分析磨牙远移阶段前后位置变化 国产隐形矫治器移动上颌2颗磨牙
[8] 2014 随机对照实验 30例,13~72岁 有/无附件磨牙远移/
三维模型分析磨牙远移阶段前后位置变化 Invisalign隐形矫治器移动1颗上磨牙
[23] 2016 回顾性研究 15例,平均27岁8个月 CBCT三维测量磨牙远移阶段前后位置变化 Invisalign隐形矫治器移动上颌2颗磨牙/采用Ⅱ类牵引或微种植钉
[16] 2016 回顾性研究 20例,(29.73±6.89)岁 头颅侧位片测量整个治疗前后位置变化 Invisalign隐形矫治器移动上颌2颗磨牙
[19] 2016 随机对照实验 30例,平均30.5岁 上颌3—7添加附件/
头颅侧位片测量整个治疗前后位置变化 Invisalign隐形矫治器移动上颌2颗磨牙
[22] 2017 回顾性研究 7例,11~20岁 三维模型分析磨牙远移阶段前后位置变化 时代天使隐形矫治器移动上颌2颗磨牙或移动第一磨牙
[28] 2019 回顾性研究 19例,平均24岁 头颅侧位片测量磨牙远移阶段前后位置变化 Invisalign隐形矫治器移动上下磨牙
[26] 2019 回顾性研究 10例,(22.7±5.3)岁 头颅侧位片测量整个治疗前后位置变化 Invisalign隐形矫治器移动上颌2颗磨牙
[24] 2020 回顾性研究 58例,12~34岁 头颅侧位片与曲面体层片测量整个治疗前后位置变化 隐形矫治器移动上磨牙45例,下磨牙13例
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