| 无牙颌一侧上颌骨缺损种植修复后的有限元应力分析 |
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| 引用本文： | 白石柱,李涤尘,赵铱民,岳进.无牙颌一侧上颌骨缺损种植修复后的有限元应力分析[J].实用口腔医学杂志,2006,22(5):651-654. |
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| 作者姓名： | 白石柱 李涤尘 赵铱民 岳进 |
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| 作者单位： | 1. 西安交通大学机械制造系统工程国家重点实验室,710028
2. 西安第四军医大学口腔医学院 |
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| 摘 要： | 目的:探讨无牙颌一侧上颌骨缺损种植修复后在力作用下支持组织中的应力分布特点。方法:建立无牙颌一侧上颌骨缺损种植修复的三维有限元模型,观察计算机模拟的不同修复方式以及不同加载方式作用下骨组织中的应力分布情况。结果:无论何种加载方式,在单纯健侧种植修复时,1位种植体周围骨皮质应力值均很高;双侧种植修复后无论何种加载方式1位种植体周围骨皮质的应力值都大大降低。结论:患侧植入种植体能够降低单纯健侧种植时邻近缺损处的种植体周围骨皮质应力,使支持组织中应力分布均匀合理,提高修复成功率。
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| 关 键 词： | 上颌骨 缺损修复 有限元法 种植体 |
| 文章编号： | 1001-3733(2006)-05-0651-04 |
| 收稿时间： | 2006-01-30 |
| 修稿时间： | 2006-07-21 |
Finite element analysis of the edentulous maxilla with unilateral maxillary defect after implant rehabilitation |
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| Bai Shizhu, Li Dichen, Zhao Yimin, et al.Finite element analysis of the edentulous maxilla with unilateral maxillary defect after implant rehabilitation[J].Journal of Practical Stomatology,2006,22(5):651-654. |
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| Authors: | Bai Shizhu Li Dichen Zhao Yimin |
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| Institution: | The State Key Laboratory for Manufacturing Systems Engineering, Xihn Jiaotong University, Xi hn 710028, China |
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| Abstract: | Objective:To investigate the stress distribution of the edentulous maxilla with unilateral maxillary defect after implant rehabilitation under occlusal loads.Methods:Three dimensional finite element model of the edentulous maxilla with unilateral maxillary defect was build.The stress distribution of the edentulous maxilla under occlusal loads with computer simulated implant rehabilitation was investigated.Results:Regardless of load manner,the stress of the bone around 1 were high when just healthy side implanted,but the stress reduced after implantantion in health side combined with the implantation in zygoma in defect side.Conclusion:Implantation in health side combined with that in zygoma in defect side can reduce the stress of the bone around the implant. |
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| Keywords: | Maxilla Defect rehabilitation Finite element methods Implants |
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