不同表面处理对铸造纯钛桩固位力的影响

目的:研究两种表面处理对铸造纯钛桩固位力的影响.方法:将铸造纯钛桩的表面分为喷砂组、酸蚀组、对照组(未喷砂组),用树脂水门汀将桩粘固于离体人牙根管内,通过拉伸实验来比较铸造纯钛桩固位力的大小.结果:固位力:酸蚀组(199.65±13.24)N]和喷砂组(190.39±14.82)N]与对照组060.26±12.3...

Effect of two different surface treatments on retention of cast pure titanium post

Objective：To study the influence of two different surface treatments on the retention of cast pure titanium post.Methods：Surface of cast pure titanium posts were divided into three groups based on different treatment,sandblasted group,acid-etched group and control group without blasting.All the posts were bonded into human teeth root canal in vitro with resin cement,and then the retention of posts of three groups were tested and recorded.Results：There was significant difference in retention among three surface treatments of sandblasting（190.39±14.82）N],acid-etched（199.65±13.24）N] and the control group（160.26±12.36）N]（P〈0.05）,while no significant difference was found between the sandblasting surface and acid-etched surface（P〉0.05）.Conclusions：Both sandblasting surface and acid-etched surface can increase the retention of the pure-titanium posts when they were bonded with resin cement