|
|||||
|
|
| 上颌第一恒磨牙不同桩核材料对牙本质应力影响的三维有限元分析 | |
| 引用本文： | 李剑,吴凤鸣,傅晓峰,浦广益,袁秀祥.上颌第一恒磨牙不同桩核材料对牙本质应力影响的三维有限元分析[J].口腔医学,2008,28(10). |
| 作者姓名： | 李剑 吴凤鸣 傅晓峰 浦广益 袁秀祥 |
| 作者单位： | 1. 无锡市人民医院口腔科,无锡,214000 2. 南京医科大学口腔医学研究所,南京医科大学口腔学院修复科,南京,210029 3. 江南大学机械学院,无锡,214000 4. 无锡市第七人民医院,无锡,214000 |
| 摘 要： | 目的用三维有限元方法分析上颌第一恒磨牙不同材料桩核对牙本质应力的影响。方法利用已建立的上颌第一恒磨牙及桩核的三维实体和三维有限元模型;在ANSYS10.0中分别对不同材质的桩核冠作同样的加载,得到牙本质内部VonMises应力云图及峰值应力数据。结果弹性模量接近牙本质的桩核可使桩尖端牙本质应力集中显著减小。结论选用弹性模量接近牙本质的桩核保护剩余的牙根组织。 |
| 关 键 词： | 上颌第一磨牙 桩核 材料 三维有限元模型 |
Three-dimensional finite element stress analyses of post-crown restored maxillary first molar with different materials |
|
| LI Jian,WU Feng-ming,FU Xiao-feng,PU Guang-yi,YUAN Xiu-xiang.Three-dimensional finite element stress analyses of post-crown restored maxillary first molar with different materials[J].Stomatology,2008,28(10). | |
| Authors: | LI Jian WU Feng-ming FU Xiao-feng PU Guang-yi YUAN Xiu-xiang |
| Institution: | LI Jian,WU Feng-ming,FU Xiao-feng,PU Guang-yi,YUAN Xiu-xiang.(Department of Stomatology,People\'s Hospital of Wuxi,Wuxi 214000,China) |
| Abstract: | Objective To study the stress distribution discipline of root of the post-crown restored maxillary first molar with three kinds of materials.Methods The stress distribution of the different post-core-crowns was studied and analyzed by three-dimensional finite element under the same loads.Results In the same composition of forces,the stress for dentin of the polythene fiber reinforced composite post-core-crown was the smallest.Conclusion The materials with elastic modulus similar to that of dentin,such as po... |
| Keywords: | maxillary first molar post-core materials three-dimensional finite element |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |