Finite element analysis on pushing the molar backwards using invisible aligner with different migration displacement.

IF 0.8 4区 医学 Q4 BIOPHYSICS
Jiwu Zhang, Lili Ma, Yuzhongxiu Ren, Yuqing Zhou, Rong Wei, Qiguo Rong
{"title":"Finite element analysis on pushing the molar backwards using invisible aligner with different migration displacement.","authors":"Jiwu Zhang, Lili Ma, Yuzhongxiu Ren, Yuqing Zhou, Rong Wei, Qiguo Rong","doi":"","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>This paper examines the biomechanical mechanism behind the effect of the invisible aligner technique on tooth movement processes.</p><p><strong>Methods: </strong>To compare the effects of different target positions on tooth movement and the periodontal ligament (PDL), two kinds of aligners were designed to provide displacements of 0.2 mm (Model A) and 0.3 mm (Model B). Different displacements of the maxillary second molar were simulated using the finite element (FE) method.</p><p><strong>Results: </strong>The results of numerical simulations showed that the maximum stress was in the PDL of the distal surface and the palatal surface. The stress of the PDL in Model B was larger than Model A, with the displacement of the second molar 0.027 mm in Model A, by 44.9% lesser than that in Model B.</p><p><strong>Conclusions: </strong>The aligner that provided a displacement of 0.2 mm was more suitable for pushing the second molar backward in the initial stage. During the tooth movement processes, the displacement of the crown was larger than that of the root and the displacement decreased gradually from the crown to the root. In addition, the displacement and rotation of teeth during orthodontic treatment were measured and analysed.</p>","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":null,"pages":null},"PeriodicalIF":0.8000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta of bioengineering and biomechanics","FirstCategoryId":"5","ListUrlMain":"","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"BIOPHYSICS","Score":null,"Total":0}
引用次数: 0

Abstract

Purpose: This paper examines the biomechanical mechanism behind the effect of the invisible aligner technique on tooth movement processes.

Methods: To compare the effects of different target positions on tooth movement and the periodontal ligament (PDL), two kinds of aligners were designed to provide displacements of 0.2 mm (Model A) and 0.3 mm (Model B). Different displacements of the maxillary second molar were simulated using the finite element (FE) method.

Results: The results of numerical simulations showed that the maximum stress was in the PDL of the distal surface and the palatal surface. The stress of the PDL in Model B was larger than Model A, with the displacement of the second molar 0.027 mm in Model A, by 44.9% lesser than that in Model B.

Conclusions: The aligner that provided a displacement of 0.2 mm was more suitable for pushing the second molar backward in the initial stage. During the tooth movement processes, the displacement of the crown was larger than that of the root and the displacement decreased gradually from the crown to the root. In addition, the displacement and rotation of teeth during orthodontic treatment were measured and analysed.

使用隐形矫治器向后推动臼齿的有限元分析,不同的移动位移。
目的:本文探讨了隐形矫治器技术对牙齿移动过程产生影响的生物力学机制:为了比较不同目标位置对牙齿移动和牙周韧带(PDL)的影响,设计了两种矫治器,分别提供0.2毫米(A型)和0.3毫米(B型)的位移。使用有限元(FE)方法模拟了上颌第二磨牙的不同位移:数值模拟结果表明,最大应力位于远端表面和腭侧表面的 PDL。模型 B 中 PDL 的应力大于模型 A,模型 A 中第二磨牙的位移为 0.027 毫米,比模型 B 中的位移小 44.9%:结论:在初始阶段,提供 0.2 毫米位移的矫正器更适合将第二磨牙向后推。在牙齿移动过程中,牙冠的位移大于牙根的位移,而且从牙冠到牙根的位移逐渐减小。此外,还测量和分析了正畸治疗过程中牙齿的位移和旋转情况。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Acta of bioengineering and biomechanics
Acta of bioengineering and biomechanics BIOPHYSICS-ENGINEERING, BIOMEDICAL
CiteScore
2.10
自引率
10.00%
发文量
0
期刊介绍: Acta of Bioengineering and Biomechanics is a platform allowing presentation of investigations results, exchange of ideas and experiences among researchers with technical and medical background. Papers published in Acta of Bioengineering and Biomechanics may cover a wide range of topics in biomechanics, including, but not limited to: Tissue Biomechanics, Orthopedic Biomechanics, Biomaterials, Sport Biomechanics.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信