中国组织工程研究Issue(11)：1749-1754,6.DOI:10.3969/j.issn.2095-4344.2014.11.018
减阻牵张成骨远移尖牙的三维有限元分析
Three-dimensional finite element analysis of canine distalization through reducing resistance and distraction osteogenesis
摘要
Abstract
BACKGROUND:Peridental membrane distraction osteogenesis exerts the functions at peridental membrane and leads to tooth movement. Alveolar bone distraction osteogenesis produces tooth movement through the displacement of the whole bone plate. <br> OBJECTIVE:To establish three-dimensional finite element model of upper and lower jaw of healthy adults under three different conditions, and to compare the stress distribution and distal movement of the models using three-dimensional finite element analysis method. <br> METHODS:Model 1:three-dimensional finite element model of the canine under normal conditions using a <br> variety of software;Model 2:three-dimensional finite element model of the canine after distracting osteggenesis of the periodontal ligament;Model 3, three-dimensional finite element model of the canine after reducing resistance and distracting osteggenesis of the alveolar bone. The force loadings were stimulated among these models. <br> RESULTS AND CONCLUSION:The biggest displacements on those three models occurred in canine crown on 1/3, and the displacement quantity on canine was model 2>model 3>model 1. The biggest equivalent stress concentrated in distal alveolar crest, and the equivalent stress was model 2<model 1<model 3. In the process of canine distal movement, reducing bone resistance and distracting osteggenesis, especial y distal alveolar crest of canine, can accelerate the tooth moving speed effectively. And the two ways successful y avoid the loss of anchorage. We should notice that the canine has distal motion tendency under the action of force, appropriate measures should be taken to control it in clinical work.关键词
组织构建/组织工程/牵张成骨/牙齿移动/三维有限元法/错牙合畸形/尖牙/牙槽间隔减阻/生物力学/正畸治疗/应力分析/数字化口腔科技术/新疆维吾尔自治区自然科学基金Key words
malocclusion/periodontal ligament/finite element analysis分类
医药卫生引用本文复制引用
舒林径,薛俊杰,王璟,徐远志,王飞宇,唐小山..减阻牵张成骨远移尖牙的三维有限元分析[J].中国组织工程研究,2014,(11):1749-1754,6.基金项目
新疆维吾尔自治区自然科学基金青年基金项目支持(2011211B35)@@@@the Natural Science Foundation for the Youth of Xinjiang Uygur Autonomous Region, No.2011211B35 （2011211B35）
