上颌中切牙瓷贴面力学特性的正交实验  

Orthogonal experimental study of mechanic characteristics of maxillary central incisor porcelain veneer

作　　者：赵莹[1] 郑淑贤[2] 

机构地区：[1]天津市公安医院口腔科,300042 [2]天津大学机械工程学院

出　　处：《实用口腔医学杂志》2012年第5期597-600,共4页Journal of Practical Stomatology

基　　金：天津市公安局科技资金资助项目(编号:2010KYSGAY018)

摘　　要：目的:通过对上颌中切牙瓷贴面的力学特性进行正交实验研究,得出相对合理的瓷贴面设计方案。方法:制作开窗型、对接型、包绕型厚度分别为0.5、0.7、0.9 mm的中切牙瓷贴面复合体,进行正交力学实验研究。结果:加载部位对应力的影响较大,其次是瓷贴面厚度、加载角度,切端设计类型的影响最小;当加载角度为0°、厚度为0.9 mm、加载部位为中1/3时对应力影响最小。结论:正常覆的患者为瓷贴面修复的最佳适应证;瓷贴面厚度对瓷贴面应力分布的影响较大,而瓷贴面切端设计对应力的影响最小。Objective： To provide guidance for relatively reasonable design of porcelain veneer by the orthogonal experiment of the mechanic characteristics of maxillary central incisor. Methods： Window, butt-joint and overlapped maxillary central incisor porcelain veneers with the thickness of 0.5, 0.7 and 0.9 mm were respectively made. Then orthogonal experimental study was conducted. Resuits： Loading station had greater influence on the stress, followed by the thickness of porcelain veneer and loading angle ; incisal design type has the least influence ; the smallest influence on the stress was found under the circumstance of 0° of loading angle, central 1/3 of loading station and 0.9 mm of thickness. Conclusion： Porcelain veneer restoration is feasible for the patients with normal over bite ; the thickness of porcelain veneer is the main influence factor on the stress distribution of veneer complex ; incisal design type is the least influence factor.

关 键 词：中切牙 瓷贴面 正交实验 

分 类 号：R783.1[医药卫生—口腔医学]