牙科用钛合金研究现状

The Present Status of Study of Ti Alloy for Dentistry

摘要:

本文综述了国内外牙科用钛合金发展过程及应用现状；介绍了现有牙科用钛合金弹性模量、抗拉强度、压缩强度、延伸率等力学性能，卤素元素对钛合金腐蚀的影响，不同材质与钛合金在口腔环境中电偶腐蚀，口腔环境中钛合金的微生物腐蚀，牙科钛合金表面特性特别是表面粗糙度对水基液体润湿性影响，设计新型牙科用钛合金时推荐使用的合金元素种类及计算设计采用的d-电子合金设计法等方面研究成果，并指出了目前存在的问题及努力的方向。

Abstract:

The purpose of this article is to review the development and applications of titanium and its alloys on dental material, including the elastic modulus, the tensile strength, the yield strength and the extensibility of dental Ti alloys, the effects of halogen ions on the corrosion of dental Ti alloy, the galvanic couple corrosion of Ti alloy combined with others type metal and the microbiological corrosion of dental Ti alloy in oral environment, the surface characteristic and the effect of roughness on the wettability, the recommended alloy elements and using d-electron alloy design theory when designing new dental Ti alloys. The existing problems and the research tendency of dental Ti and Ti alloy were discussed.