下颌牙列三维光弹模型的设计和制作  

The design and fabrication of 3D photoelastic model of mandibular dentition

作　　者：凌月华[1] 张富强[1] 姜卫东[1] 钱琼[1] 

机构地区：[1]上海第二医科大学附属第九人民医院口腔修复科,上海200011

出　　处：《口腔材料器械杂志》2003年第4期183-185,共3页Chinese Journal of Dental Materials and Devices

基　　金：上海市科技发展基金 编号004119075

摘　　要：目的 探讨下颌牙列三维光弹模型的设计和制作。方法 根据相似性原理,用不同弹性模量的环氧树脂模拟牙体、牙槽骨,用硅橡胶模拟牙周膜制作下颌牙列三维光弹模型。结果 制作了与实体相近的下颌牙列三维光弹模型。牙体、牙槽骨及牙周膜的弹性模量之比为13.2:1:0.0003。结论 该三维光弹模型可用于定性分析牙周支持组织的应力分布情况。Objective To discuss the design and fabrication of the 3D photoelastic model of mandibular dentition. Method According to principle of similarity, epoxy resin with different elastic modulus was used to imitate teeth and alveolus, silicon was used to imitate periodontal membrane, 3D photoelastic model of mandibular dentition was fabricated. Result We finished the 3D photoelastic model of mandibular dentition that is as similar as the practical teeth , alveolus and periodontal membrane. The ratio of elastic modulus of teeth, alveolus and periodontal membrane was 13.2:1:0.0003. Conclusion The 3D photoelastic model may be used for qualitative analysis of the stress distribution in the supporting tissues.

关 键 词：下颌牙列 三维光弹模型 设计 制作 相似性原理 牙周支持组织 

分 类 号：R783[医药卫生—口腔医学]