| 不同长度种植体对骨界面应力影响的三维有限元分析 |
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| 引用本文： | 赖红昌,熊焕国.不同长度种植体对骨界面应力影响的三维有限元分析[J].上海口腔医学,1997,6(1):20-22. |
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| 作者姓名： | 赖红昌 熊焕国 |
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| 作者单位： | [1]上海第二医科大学口腔医学院 [2]上海第二工业大学 |
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| 摘 要： | 作者应用牙ＣＴ扫描图像建立三维有限元种植模型，研究不同长度种植体在垂直，斜向，水平三种受载条件下周围界面的应力，结果显示：种植体长度增加两倍左右，而种植体骨界面最大应力区域的最大应力值只下降１０％左右，从而提示，种植体长短对骨界面最大应力值影响不大，临床上进行口腔种植手术设计时无须过分强调种植体的长度选择。
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| 关 键 词： | 三维有限元 CT 种植体长度 义齿 骨界面 |
Three dimensioal FEM analysis of stress distribution around dental implants to estimate the influence of the length |
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| Lai Hongchang,Xiong Huangao,Xue Mao,et al..Three dimensioal FEM analysis of stress distribution around dental implants to estimate the influence of the length[J].Shanghai Journal of Stomatology,1997,6(1):20-22. |
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| Authors: | Lai Hongchang Xiong Huangao Xue Mao |
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| Institution: | Department of Prosthodontics, Ninth People's Hospital, School of Stomatology, Shanghai Second Medical University. Shanghai 200011,China. |
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| Abstract: | The effect of the length of implants on stress distribution is one of the im-portant subjects in implantology. In this study, Three dimensional finite element methodsmodel was constructed by dental CT images,The purpose of this study was to evaluate thestress distribution in bone adjacent to an implant after application of loading in horizontal,oblique and vertical direct. It was show that the highest stress occured at the cervical bonemargin adjacent to the implant only 10% decrease in inverse two times increase in implantlength,and correlated little to the implant length,therefore,it was unnecessary to emphasizethe length of the implants in clinic. |
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| Keywords: | three-dimensional FEM the length of implant |
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