| 基于松动牙作基牙的固定桥力学模型的建立与分析 |
| |
| 引用本文： | 魏斌,于力牛,张富强.基于松动牙作基牙的固定桥力学模型的建立与分析[J].口腔颌面修复学杂志,2006,7(4):252-253,F0003. |
| |
| 作者姓名： | 魏斌 于力牛 张富强 |
| |
| 作者单位： | 1. 上海交通大学医学院附属第九人民医院口腔修复科,上海,200011
2. 上海交通大学生命质量研究所,上海,200032 |
| |
| 基金项目： | 上海市重点学科(特色学科)建设项目资助(项目编号:T0202) |
| |
| 摘 要： | 目的:观察松动牙作基牙时,固定桥支持组织的应力分布。方法:在POWERSHAPE及ANSYS软件的帮助下,建立右下第一磨牙缺失及局部固定义齿的三维有限元模型。模拟第一双尖牙II度松动,观察并对照3个实验固定桥模型中基牙应力的变化,最大应力值的部位和大小。结果:模型一和模型二的最大应力均出现在第二双尖牙处,模型三最大应力出现在第一双尖牙处。结论:在松动基牙侧增加基牙数目,可以有效改善固定桥支持组织的应力分布。
|
| 关 键 词： | 义齿 局部 固定 基牙 松动牙 有限元分析 |
| 文章编号： | 1009-3761（2006）04-0252-02 |
| 收稿时间： | 04 20 2006 12:00AM |
| 修稿时间： | 2006-04-20 |
The establishment and analysis of mechanical models for the FPD with loosen abutments |
| |
| WEI Bin,YU Li-niu,ZHANG Fu-qiang.The establishment and analysis of mechanical models for the FPD with loosen abutments[J].Chinese Journal of Prosthodontics,2006,7(4):252-253,F0003. |
| |
| Authors: | WEI Bin YU Li-niu ZHANG Fu-qiang |
| |
| Institution: | Department of Prosthodontics, Ninth hospital, Shanghai jiaotong University, Shanghai 200011, China |
| |
| Abstract: | Objective:To observe the stress distribution of the FPD,which used the loosen teeth as abutments.Methods:With the help of the POWERSHAPE and ANSYS software,we established 3D dentition FEA models with right mandibular first molar missing and fixed partial denture.The second premolar with mobility degrss 2 was simulated in degree II.Among three experimental models,the magnitude and distribution of stress of the abutments were observed and contrasted.Results:The maximum stress was concentrated upon the second premolar in model I and model II,but it appeared on the first premolar in model III.Conclusion:Adding abutments on the weaken side is effective in the improv-ment of stress distribution of the FPD. |
| |
| Keywords: | denture partial fixed abutment loose tooth finite alement analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
