| 下颌第一磨牙隐裂模型裂纹变化的三维有限元分析 |
| |
| 引用本文： | 侯铁舟,朱丰燕,陶洪,王帅帅. 下颌第一磨牙隐裂模型裂纹变化的三维有限元分析[J]. 华西口腔医学杂志, 2009, 27(2): 126-129 |
| |
| 作者姓名： | 侯铁舟 朱丰燕 陶洪 王帅帅 |
| |
| 作者单位： | 西安交通大学医学院附属口腔医院,口腔内科,陕西,西安,710004;西安交通大学医学院第一附属医院,口腔科,陕西,西安,710061 |
| |
| 基金项目： | 国家自然科学基金，西安市社会发展基金 |
| |
| 摘 要： | 目的研究隐裂下颌第一磨牙受力后裂纹的变化情况，以及裂纹存在对牙齿受力后整体位移的影响。方法建立包含不同深度和长度裂纹的隐裂下颌第一磨牙的三维有限元模型以及无裂纹对照模型，模拟咬合过程，确定6种加载方式，通过有限元计算，求得不同裂纹的变化情况以及裂纹存在对牙齿整体位移的影响。结果随着裂纹深度和长度的增加，面裂纹的宽度亦变大，载荷4的影响最大。开裂时裂纹边缘不齐，相邻节点不在同一平面上。邻面裂纹在载荷6工况下开裂最大。裂纹存在时牙齿整体位移增加，但对牙齿整体位移的影响是有限的。结论裂纹的变化与初始裂纹形式和载荷工况密切相关。
|
| 关 键 词： | 隐裂牙 载荷 裂纹 有限元法 |
| 收稿时间： | 2009-04-25 |
| 修稿时间： | 2009-04-25 |
Three-dimensional finite element analysis of the change of cracks in the cracked first mandibular molar under different loading conditions |
| |
| HOU Tie-zhou,ZHU Feng-yan,TAO Hong,WANG Shuai-shuai. Three-dimensional finite element analysis of the change of cracks in the cracked first mandibular molar under different loading conditions[J]. West China journal of stomatology, 2009, 27(2): 126-129 |
| |
| Authors: | HOU Tie-zhou ZHU Feng-yan TAO Hong WANG Shuai-shuai |
| |
| Affiliation: | 1. Dept. of Oral Medicine, Stomatological Hospital of Xi′an Jiaotong University, Xi′an 710004, China; 2. Dept. of Stomatology, The First Hospital of Xi′an Jiaotong University, Xi′an 710061, China |
| |
| Abstract: | Objective To study the change of the cracks and the influence on overall displacement of the cracked first mandibular molar under different loadings.Methods Three-dimensional finite element models of first mandibular molar with cracks of different depth and length and a control model with no crack were created firstly.Then six loading conditions were applied to the models simulating the real mastication.The changes of the cracks and displacement of the teeth under the six loadings conditions were obtained b... |
| |
| Keywords: | cracked tooth loading crack finite element method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《华西口腔医学杂志》浏览原始摘要信息 |
|
点击此处可从《华西口腔医学杂志》下载免费的PDF全文 |
