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| 下颌角部牵张成骨的有限元分析 | |
| 引用本文： | 曹猛,丁寅,周伟群,史真,刘水,李松涛.下颌角部牵张成骨的有限元分析[J].口腔正畸学,2007,14(2):64-66. |
| 作者姓名： | 曹猛 丁寅 周伟群 史真 刘水 李松涛 |
| 作者单位： | 1. 710032,第四军医大学口腔医学院正畸科 2. 710032,第四军医大学口腔医学院总参谋部情报部门诊部 3. 西安交通大学机械结构强度与振动国家重点实验室 |
| 摘 要： | 目的应用力学相似性较高的下颌骨三维有限元模型,分析角部牵张成骨对下颌内部应力分布及位移趋势的影响。方法在有限元模型的下颌角部模拟骨皮质切开并加载。结果获得角部单、双侧牵张成骨条件下,下颌骨内部应力分布和各部分位移的趋势。发现下颌骨角部牵张成骨应力集中在牵张部位。(牙合)平面有顺时针旋转的趋势,单侧加载较双侧加载下颌整体向对侧的位移趋势大。 |
| 关 键 词： | 牵张成骨 有限元法 下颌角 生物力学 |
| 修稿时间： | 2006年4月20日 |
The finite element analysis of distraction osteogenesis of mandibular angle |
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| CAO Meng,DING Yin,ZHOU Weiqun,SHI Zhen,LIU Shui,LI Songtao.The finite element analysis of distraction osteogenesis of mandibular angle[J].Chinese Journal of Orthodontics,2007,14(2):64-66. | |
| Authors: | CAO Meng DING Yin ZHOU Weiqun SHI Zhen LIU Shui LI Songtao |
| Institution: | CAO Meng DING Yin ZHOU Weiqun SHI Zhen LIU Shui LI Songtao Department of Orthodontics,School of Stomatology,Fourth Military Medical University,xi'an,710032 |
| Abstract: | Objective To establish a 3-D finite element model with better biomechanical similarity to the situation in vivo for the study of distraction osteogenesis in angle of mandible.Methods A young man with normal occlusion was selected for CT scanned transverse section which was then used to establish the model by computer software.Tension-only spar element and compression-only gap element were both used for boundary condition and distraction osteogenesis with corticotomy simulated.Results A 3-D finite element model including mandible ramus,body,TMJ,muscles,ligaments was presented.The above mentioned method could improve the biomechanieal similarity of the finite element model,which lays a good foundation for a series of studies on distraction osteogenesis of the mandibular angle. |
| Keywords: | distraction osteogenesis finite element method angle of mandible biomechanics |
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