Advances in Finite Element Analysis of Anterior Tooth Retraction with Clear Aligners in Extraction Cases
10.16156/j.1004-7220.2025.04.002
- VernacularTitle:拔牙病例隐形矫治内收前牙的有限元研究进展
- Author:
Yixin JIN
1
;
Peiqi WANG
1
;
Xiaohan JIN
1
;
Chaoran XUE
1
;
Xianglong HAN
1
Author Information
1. 口腔疾病防治全国重点实验室;国家口腔医学中心;国家口腔疾病临床医学研究中心;四川大学华西口腔医院口腔正畸科,成都 610041
- Publication Type:Journal Article
- Keywords:
clear aligners;
extraction cases;
anterior tooth retraction;
orthodontic tooth movement;
finite element analysis;
biomechanics
- From:
Journal of Medical Biomechanics
2025;40(4):807-813
- CountryChina
- Language:Chinese
-
Abstract:
With the advancement of economic development and clear aligner technology,invisible orthodontics has become an important treatment approach for malocclusion.However,in extraction cases involving anterior tooth retraction,the limited three-dimensional force control of aligners often leads to lingual tipping of incisors,deepened overbite,and anchorage loss of posterior teeth,thereby increasing the complexity and uncertainty of orthodontic treatment.As an effective tool for simulating complex biomechanical behaviors,finite element analysis(FEA)enables quantitative assessment of tooth movement and stress distribution in the periodontium,providing theoretical support for optimizing aligner design.This review focuses on FEA studies of anterior tooth retraction using clear aligners in extraction cases,summarizes tooth movement characteristics,and discusses key influencing factors including aligner parameters,movement patterns,attachment design,and auxiliary appliances.Finally,the future directions of FEA in dynamic simulation and personalized modeling are explored to support more predictable and effective clinical outcomes.
