| 下颌第一磨牙种植体周围应力三维有限元分析 |
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| 引用本文： | 王晓洁,罗教明,陈继镛,张兴栋. 下颌第一磨牙种植体周围应力三维有限元分析[J]. 华西口腔医学杂志, 2005, 23(2): 167-169 |
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| 作者姓名： | 王晓洁 罗教明 陈继镛 张兴栋 |
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| 作者单位： | 四川大学生物材料工程研究中心,四川 成都610064 |
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| 基金项目： | 国家自然科学基金资助项目(30471758) |
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| 摘 要： | 目的 探讨精确的有限元分析(FEA)模型建立的方法,使FEA分析计算结果更加真实有效。方法 采用下颌骨计算机断层扫描(CT)数据、通过计算机图像处理及计算机辅助设计(CAD)技术,获取精确的下颌骨第一磨牙几何模型。应用FEA技术对圆柱状种植体周围骨内应力分布情况进行分析。结果 种植体周围应力分布具有高度的非对称性,主要集中于下颌骨舌侧颈部,颊侧主要为拉应力作用,舌侧为压应力作用。结论 基于CT数据建立的模型能更真实地反映下颌骨的结构特点,使FEA分析结果更趋于真实。
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| 关 键 词： | 应力分布 牙种植体 三维有限元分析 下颌骨模型 |
| 文章编号： | 1000-1182(2005)02-0167-03 |
| 收稿时间： | 2005-04-25 |
| 修稿时间： | 2004-03-01 |
The Study on Three-dimension Finite Element Analysis of the Stress Distribution in the Mandible Bone around Dental Implants |
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| WANG Xiao-jie,LUO Jiao-ming,CHEN Ji-yong,ZHANG Xing-dong. The Study on Three-dimension Finite Element Analysis of the Stress Distribution in the Mandible Bone around Dental Implants[J]. West China journal of stomatology, 2005, 23(2): 167-169 |
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| Authors: | WANG Xiao-jie LUO Jiao-ming CHEN Ji-yong ZHANG Xing-dong |
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| Affiliation: | Engineering Research Center in Biomaterials, Sichuan University, Chengdu610064, China |
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| Abstract: | Objective The aim of this study was to investigate how to model an accuracy 3-dimension Finite Element Analysis (3D-FEA) model.Methods Based on computed tomography (CT) scan data of a woman, a 3D finite element model of the first molar on the left was rebuilt by computer imagines process and computer aided design (CAD). Analysis of the stress distribution on a cylinder dental implant and in the bone around it was conducted.Results The stress distribution showed extremely asymmetry in bucco-lingual section: stress concentrated on the lingual side of the mandible; stress mainly was tensile in buccal side, and on the contrary compressive in lingual side.Conclusion The results were more reliable because this model more really displayed the mandible. |
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| Keywords: | stress distribution dental implants three-dimension finite element analysis mandible model |
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