中国美容医学2011，Vol.20Issue(4)：636-638,3.
不同氟离子浓度对纯钛卡环疲劳强度的影响
Effect of different fluoride concentration on the fatigue strength of pure titanium clasp
王仕刚 1李天侠 1罗晓婷 1樊久铭2
作者信息
- 1. 哈尔滨医科大学附属口腔医院修复科,黑龙江哈尔滨,150001
- 2. 哈尔滨工业大学力学实验教学示范中心
- 折叠
摘要
Abstract
Objective To study the effect of different fluoride concentration on the fatigue strength of pure titanium clasp. Methods Twenty casting clasp specimens of pure titanium made from prefabricated wax were divided into 4 groups,respectively [F-]=0ppm,500ppm,750ppm, 1 000ppm of artificial saliva tested. Initial loading force and loading cycle before fracture were registered automatically,and fracture flaws were examined with SEM. Results The initial loading forces of Pure Titanium were not significant difference among 4 test conditions (P＞0 05),while the number of cycles and the fatigue strength significant; The tested clasps had the highest loading cycles in artificial saliva without fluoride, with the fluoride concentration increase in the number of loading cycles decreased. Fatigue strength analysis showed a significant difference among 4 groups (P＜0.01). Conclusion The results suggest that the fluoride concentration increases with pure titanium clasp to decrease fatigue strength.关键词
纯钛/卡环/疲劳强度/氟离子浓度Key words
pure titanium/ clasp/ fatigue strength/ fluoride concentration分类
医药卫生引用本文复制引用
王仕刚,李天侠,罗晓婷,樊久铭..不同氟离子浓度对纯钛卡环疲劳强度的影响[J].中国美容医学,2011,20(4):636-638,3.
