上海交通大学学报（医学版）

›› 2009, Vol. 29 ›› Issue (11): 1285-.

• 专题报道（口腔修复学） • 上一篇    下一篇

套筒冠固位可摘局部义齿的建模及其力学特征分析

魏 斌, 黄庆丰, 金文忠, 陈 洁, 张富强   

  1. 上海交通大学 医学院第九人民医院口腔医学院 口腔修复科 上海市口腔医学重点实验室, 上海 200011
  • 出版日期:2009-11-25 发布日期:2009-11-24
  • 通讯作者: 张富强, 电子信箱: fredzc@online.sh.cn。
  • 作者简介:魏斌（1969—）, 男, 副主任医师, 博士；电子信箱: weibin0328@hotmail.com。
  • 基金资助:

    “十一五”家科技支撑计划重点项目(2007BAI18B05)；上海市科学技术委员会资助项目(08DZ2271100)；上海市重点学科建设项目(S30206)；上海市重点(特色)学科建设项目(T0202)

Model establishment and stress analysis of telescopic crown-retained removable partial dentures

WEI Bin, HUANG Qing-feng, JIN Wen-zhong, CHEN Jie, ZHANG Fu-qiang   

  1. Department of Prosthodontics, Shanghai Key Laboratory of Stomatology, College of Stomatology, The Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200011, China
  • Online:2009-11-25 Published:2009-11-24
  • Supported by:

    The Eleventh Five Year Plan National Key Science and Technology Project, 2007BAI18B05; Shanghai Science and Technology Committee Foundation, 08DZ2271100; Shanghai Leading Academic Discipline Fund, S30206; Shanghai Leading Academic Discipline Fund, T0202

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摘要：

目的 二次开发有限元模型库，尝试该建模方法对套筒冠义齿进行力学分析的可行性。方法 在正常牙列模型库、固定义齿模型库及可摘局部义齿模型库基础上进行二次开发，在DELL Precision图形工作站，利用UG 5.0、HyperMesh 7.0和Abaqus 6.5等软件，对下颌双侧游离缺失牙列状态及以尖牙和第一双尖牙为基牙的套筒冠修复体进行调用、编辑、建模，并进行有限元力学分析。结果 建模过程便捷，有限元分析获得基牙牙根、牙周膜、牙槽黏膜、牙槽骨及修复体最大应力值及其分布情况。结论 采用模型库的方法对套筒冠修复体进行建模是可行且可靠的。

关键词: 有限元分析, 模型库, 套筒冠义齿

Abstract:

Objective To redevelop the finite element model libraries and to analyse the stress distribution of telescopic crown dentures. Methods The finite element model libraries were redeveloped based on the model libraries of normal dentition, fixed partial denture and removable partial denture. With the help of softwares such as DELL Precision Graphics Workstation, UG 5.0, HyperMesh 7.0 and Abaqus 6.5, the telescopic denture models on the bilateral free-ended case were imported and edited, then the finite element stress analysis was performed. Results The models were easily established. The maximum value of stress and its distribution on abutment root, periodontal membrane, alveolar mucosa, alveolar bone and dental prostheses were observed and studied by the finite element stress analysis. Conclusion The way to establish models of telescopic crown dentures by model libraries is feasible and reliable.

Key words: finite element analysis, model library, telescopic crown denture