Three-dimensional finite element analysis of the craniomaxillary complex during maxillary protraction with bone anchorage vs conventional dental anchorage

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	Three-dimensional finite element analysis of the craniomaxillary complex during maxillary protraction with bone anchorage vs conventional dental anchorage
	X. L. Yan; W. J. He; T. Lin; J. Liu; X. F. Bai; G. Q. Yan; L. Lu
	2013
发表期刊	American Journal of Orthodontics and Dentofacial Orthopedics
ISSN	0889-5406
卷号	143 期号:2 页码:197-205
摘要	Introduction: The aim of this study was to explore the biomechanical effects on the craniomaxillary complex of bone anchorage and dental anchorage during maxillary protraction. Methods: We established 2 finite element models. One simulated maxillary protraction with dental anchorage in the maxillary first molars and the other with bone anchorage in the infrazygomatic buttresses of the maxilla. The magnitude of the applied forces was 500 g per side, and the force directions were 0 degrees, 10 degrees, 20 degrees, and 30 degrees forward and downward relative to the occlusal plane. Results: The finite element model of the craniomaxillary complex could displace in an almost translatory manner when the force direction was about 20 degrees in the bone anchorage model and about 30 degrees in the dental anchorage model. The nodes representing the sutures at the back of the maxilla showed greater stress in the bone anchorage model than in the dental anchorage model in the same force direction. It is the opposite at the front of the maxilla. Conclusions: We should determine the direction of applied force according to the anchorage location and skeletal characteristics of patients before maxillary protraction. The dramatic effects of maxillary protraction with bone anchorage can be based on the advantages of bone anchorage, not on the changes in the region of the applied force. (Am J Orthod Dentofacial Orthop 2013;143:197-205)
部门归属	[yan, xiulin] china med univ, sch stomatol, dept orthodont, shenyang 110002, liaoning, peoples r china. [he, weijun ; lin, tao] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china. [liu, jun] northeastern univ, sch sci, shenyang, liaoning, peoples r china. [bai, xiaofeng ; yan, guangqi] china med univ, sch stomatol, dept oral & maxillofacial surg, shenyang 110002, liaoning, peoples r china. [lu, li] china med univ, dept oral & maxillofacial surg, shenyang 110002, liaoning, peoples r china. [lu, li] china med univ, sch stomatol, shenyang 110002, liaoning, peoples r china. ; lu, l (reprint author), china med univ, sch stomatol, dept oral & maxillofacial surg, 117 nanjing n st, shenyang 110002, liaoning, peoples r china. ; luli@mail.cmu.edu.cn
关键词	Class-iii Malocclusion Face-mask Therapy Craniofacial Skeleton Stress-distribution Expansion Displacement Hypoplasia Patient Appliance Headgear
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71619
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. L. Yan,W. J. He,T. Lin,et al. Three-dimensional finite element analysis of the craniomaxillary complex during maxillary protraction with bone anchorage vs conventional dental anchorage[J]. American Journal of Orthodontics and Dentofacial Orthopedics,2013,143(2):197-205.
APA	X. L. Yan.,W. J. He.,T. Lin.,J. Liu.,X. F. Bai.,...&L. Lu.(2013).Three-dimensional finite element analysis of the craniomaxillary complex during maxillary protraction with bone anchorage vs conventional dental anchorage.American Journal of Orthodontics and Dentofacial Orthopedics,143(2),197-205.
MLA	X. L. Yan,et al."Three-dimensional finite element analysis of the craniomaxillary complex during maxillary protraction with bone anchorage vs conventional dental anchorage".American Journal of Orthodontics and Dentofacial Orthopedics 143.2(2013):197-205.