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学科主题: 口腔医学
题名:
Design and finite element analysis of a novel sliding rod microscrew implantation device for mandibular prognathism
作者: Li, Yanfeng1; Lv, Yuan2; Lu, Yongjin3; Zeng, Pan3; Zeng, Xianglong4; Guo, Xiaoqian1; Han, Weili1
关键词: Mandibular prognathism ; molar ; distalization ; microscrew ; finite element analysis
刊名: INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL MEDICINE
发表日期: 2015
卷: 8, 期:7, 页:10687-10695
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Medicine, Research & Experimental
研究领域[WOS]: Research & Experimental Medicine
关键词[WOS]: DISTALIZATION ; ARCH
英文摘要:

Tooth distalization is an effective approach for mandibular prognathism. Current distalization devices are bulky and clinically complicated. Here, we designed a novel molar distalization device by using a sliding rod and a microscrew and performed a mechanical analysis and finite element model (FEM) analysis of force distribution and displacement of the upper canine, first and second premolar and first molar. A 2D FEM was constructed using the Beam3 element and a 3D FEM was constructed of the mandibular teeth, the periodontal membrane, and the alveolar bones using the UG software. The upper first molar was divided into 12 points on the dental surface to facilitate stress analysis. Force analysis using the ANSYS WORKBECNH revealed that, both horizontally and vertically, the traction force causing distalization of the first molar decreased when the spring coil moved down the L shaped sliding rod. The 3D FEM force analysis revealed distomedial displacement of the upper first molar when the sliding rod microscrew implantation device caused distalization of the molar. These findings support further exploration for the use of the sliding rod microscrew implants as an anchorage for group distal movement of the teeth of patients with mandibular prognathism.

语种: 英语
所属项目编号: 2014FC-SXYY-1003 ; 2014-4-5022
项目资助者: PLA General Hospital ; Capital&prime ; s Special Health Development Research
WOS记录号: WOS:000361557500047
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/53463
Appears in Collections:北京大学口腔医学院_牙周科_期刊论文

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作者单位: 1.Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China
2.Peoples Liberat Army Gen Hosp, Affiliated Hosp 1, Dept Stomatol, Beijing, Peoples R China
3.Liaoning Med Univ, Peoples Liberat Army Gen Hosp, Affiliated Hosp 1, Liaoning, Peoples R China
4.Peking Univ, Sch Stomatol, Dept Orthodont, Beijing 100871, Peoples R China

Recommended Citation:
Li, Yanfeng,Lv, Yuan,Lu, Yongjin,et al. Design and finite element analysis of a novel sliding rod microscrew implantation device for mandibular prognathism[J]. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL MEDICINE,2015,8(7):10687-10695.
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