北京大学医学部机构知识库
Advanced  
IR@PKUHSC  > 北京大学口腔医学院  > 牙周科  > 期刊论文
学科主题: 口腔医学
题名:
Torque control of the maxillary incisors in lingual and labial orthodontics: A 3-dimensional finite element analysis
作者: Liang, Wei1; Rong, Qiguo2; Lin, Jiuxiang1; Xud, Baohua3
刊名: AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS
发表日期: 2009-03-01
DOI: 10.1016/j.ajodo.2007.03.039
卷: 135, 期:3, 页:316-322
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Dentistry, Oral Surgery & Medicine
研究领域[WOS]: Dentistry, Oral Surgery & Medicine
关键词[WOS]: PERIODONTAL-LIGAMENT ; TOOTH MOVEMENT ; BONE LOSS ; STRESS ; APPLIANCES ; RESISTANCE ; FORCES ; MODEL
英文摘要:

Introduction: Lingual orthodontics has developed rapidly in recent years; however, research on torque control variance of the maxillary incisors in both lingual and labial orthodontics is still limited, especially studies with 3-dimensional finite element methods. Thorough understanding of the biomechanical differences of incisor torque control during lingual and labial orthodontic treatment is critical for the best results. Methods: A 3-dimensional finite element model of the maxilla and the maxillary incisors was made with 98,106 nodes, 71,944 10-node solid elements, and 5236 triangle shell units. Horizontal retraction force, vertical intrusive force, and lingual root torque were applied to simulate labial and lingual orthodontic treatment. Then the distribution of the stress-strain (maximum and minimum principal stresses; maximum and minimum principal strains) in the periodontal ligament, the total displacement, and the vector graph of displacement of the nodes of the maxillary central incisor were analyzed and compared between labial and lingual orthodontics. Results: Loads of the same magnitude produced translation of the maxillary incisor in labial orthodontics but lingual crown tipping of the same tooth in lingual orthodontics. This suggests that loss of torque control of the maxillary incisors during retraction in extraction patients is more likely in lingual orthodontic treatment. Conclusions: Lingual orthodontics should not simply follow the clinical experience of the labial techniques but should increase lingual root torque, increase vertical intrusive force, and decrease horizontal retraction force properly to achieve the best orthodontic results. (Am J Orthod Dentofacial Orthop 2009;135:316-22)

语种: 英语
WOS记录号: WOS:000263931200013
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/52727
Appears in Collections:北京大学口腔医学院_牙周科_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Peking Univ, Dept Mech Engn, Beijing 100081, Peoples R China
2.Peking Univ, Sch & Hosp Stomatol, Dept Orthodont, Beijing 100081, Peoples R China
3.China Japan Friendship Hosp, Dept Stomatol, Beijing, Peoples R China

Recommended Citation:
Liang, Wei,Rong, Qiguo,Lin, Jiuxiang,et al. Torque control of the maxillary incisors in lingual and labial orthodontics: A 3-dimensional finite element analysis[J]. AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS,2009,135(3):316-322.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Liang, Wei]'s Articles
[Rong, Qiguo]'s Articles
[Lin, Jiuxiang]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Liang, Wei]‘s Articles
[Rong, Qiguo]‘s Articles
[Lin, Jiuxiang]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  北京大学医学部 - Feedback
Powered by CSpace