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| 三种固位方法修复楔形缺损牙颈部的应力分析 | |
| 引用本文： | 林娜,许颖,尹翰文,满大鹏. 三种固位方法修复楔形缺损牙颈部的应力分析[J]. 牙体牙髓牙周病学杂志, 2011, 0(5): 276-279 |
| 作者姓名： | 林娜 许颖 尹翰文 满大鹏 |
| 作者单位： | 佳木斯大学附属口腔医院; |
| 摘 要： | 目的:应用三维有限元法研究倒凹、箱型、复合体点状洞3种不同固位方法修复楔形缺损后,牙颈部硬组织的应力分布。方法:通过螺旋CT扫描技术,借助于Mimics、Ansys等软件建立上颌第一前磨牙楔形缺损的三维有限元模型,选择以上3种固位方法模拟修复缺损区,采用三维有限元法对牙颈部硬组织进行应力分析。结果:倒凹、箱型、复合体点状洞修复楔形缺损后,牙颈部硬组织最大主应力分别为5.0113、5.0240、4.7747 MPa;最小主应力分别为0.99187、0.99396、0.94488 MPa。结论:3种固位方法修复楔形缺损复合体点状洞效果最好。 |
| 关 键 词： | 楔形缺损 固位 应力 有限元法 |
Three-dimensional finite element analysis of stress distribution in teeth with wedge-shaped defects restored by three different techniques |
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| LIN Na,XU Ying,YIN Han-wen,MAN Da-peng. Three-dimensional finite element analysis of stress distribution in teeth with wedge-shaped defects restored by three different techniques[J]. Chinese Journal of Conservative Dentistry, 2011, 0(5): 276-279 | |
| Authors: | LIN Na XU Ying YIN Han-wen MAN Da-peng |
| Affiliation: | LIN Na,XU Ying,YIN Han-wen,MAN Da-peng (School of Stomatology,Jiamusi University,Jiamusi 154004,China) |
| Abstract: | AIM:To investigate the stress distribution at tooth cervix in wedge-shaped defect teeth restored by three different retention techniques.METHODS:Three-dimensional finite element model of maxillary first premolars with wedge-shaped defect was established with spiral CT scan technology and Mimics Ansys software.The model was restored by pour concave,box and the plaque-forming hole technique respectively,and the stress distribution in the cervical region was studied.RESULTS:In the restored models,the maximum s... |
| Keywords: | wedge-shaped defect retention stress finite element method(FEM) |
| 本文献已被 CNKI 等数据库收录！ | |