激光实时全息法用于双尖牙受力分析的研究  

Stress Analysis of Premolar Under Loading by Laser Real time Holographic Method

作　　者：熊秉衡[1] 王正荣[1] 任贤云[2] 许昭永[3] 王崇真[1] 张永安[1] 刘文康[2] 管玉堂[2] 谢静[2] 张汉芹[2] 

机构地区：[1]昆明理工大学激光研究所,云南昆明650051 [2]昆明医学院附一医院,云南昆明650032 [3]云南省地震局地震工程研究院,云南昆明650041

出　　处：《光电子．激光》2001年第7期725-727,737,共4页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金资助项目 (46 76 4 0 10 ) ;云南省科委应用基础研究基金资助项目 (97D0 2 7Q)

摘　　要：本文介绍了激光实时全息法用于双尖牙受力分析的研究。模型试验表明 :在双尖牙牙尖部位及牙颈部位有明显的应力集中 ,牙尖部位受力较大 ,牙颈部位次之 ,折裂大多从两牙尖的正中裂开 ,折裂方式与临床观察相吻合。本文对此进行了相应的分析 ,并对牙骨质剥落等问题提出防治的建议。Study of the stress distribution of premolar under loading by laser real-time holographic method is introduced. The optical setup for the real-time holographic testing system is presented. The model experiments show that stress concentration occurs in the top and the neck of premolar. Most of the cracks occurs in the center part between the two tops of tooth, and the way of fracture is in agreement with the results of clinical observation. These phenomena are analyzed and some suggests for prevention and cure of dentine peeling off are given.

关 键 词：激光 实时全息法 干涉条纹 双尖牙 受力分析 

分 类 号：O438.1[机械工程—光学工程]