摘要
目的:利用喷砂、双重酸蚀和H2O2法构建粗化、改性种植体表面并对其形貌进行分析。方法:商业纯钛片经磨平、喷砂、清洗后分为6组,分别采用不同方法进行处理,从而得到不同的表面形貌。用扫描电镜(FSEM)观察表面形貌,能谱分析表面元素组成,X射线衍射(XRD)分析表面成分。结果:钛片表面经喷砂、超声清洗后,表面嵌有大量的喷砂颗粒,经低浓度HF/HNO3酸蚀后,仍有部分残留;同时,钛片表面形成大量纳米级孔洞。经高浓度HF/HNO3酸蚀后完全去除喷砂颗粒,钛片表面形成大量微米级孔洞。钛片再经HCl和H2SO4混合液酸蚀后,可以完全去除喷砂颗粒,同时得到多级孔洞结构。H2O2法处理,可使粗化表面得到锐钛矿晶相结构的TiO2层。结论:通过改变HF/HNO3浓度,可以得到不同孔径的孔洞;双重酸蚀处理,可以完全去除喷砂颗粒,并得到多级孔洞结构。H2O2法可将粗化表面的非晶态TiO2结晶转变为锐钛矿晶相结构。
PURPOSE： Using sandblast, double acid-etching and H2O2/HCl solution treatment to establish a new implant surface, and to analyze the surface＇s morphology. METHODS： After being polished, sandblasted, cleaned, the titanium specimens were divided into six groups, i.e.A to F group. The specimens of group A were treated with low concentration of HF/HNO3 solution, Group B was treated with low concentration of HF/HNO3 solution and then H2SO4/HCl solution, Group C was treated after Group B and further with H2O2/HCl solution at 80℃ for 30 minutes, and subsequently heated at 400℃ for 1 hour. Group D was treated with high concentration of HF/HNO3 solution, Group E was treated after Group D and then H2SO4/HCl solution, Group F was treated after E group and further with H2O2/HCl solution at 80℃ for 30 minutes, and subsequenty heated at 400℃ for 1 hour. RESULTS： The titanium surface sandblasted and ultrasonically cleaned exhibited a great deal of particles. The titanium plates treated with low concentration of HF/HNO3 solution still had some particles, but there were much nano-boles on the titanium surface. The titanium plates treated with high concentration of HF/HNO3 solution had no particles on the surface, but showed much micron-holes on the titanium surface. The titanium plates treated with H2SO4/HCl solution after HF/HNO3 solution etching had all particles removed and got multilevel holes on the surface.The last H2O2/HCl method produced an anatase titania gel layer on the specimen surface.CONCLUSION： By altering the concentration of HF/ HNO3 solution, we could make different sizes of apertures on the titanium surface. Double acid-etching can remove all sandblasting particles embedded in titanium surfaces and form multilevel holes.The H2O2/ HCl method can turn the rough non- crystallographic TiO2 layer into the anatase titania gel layer.
出处
《上海口腔医学》
CAS
CSCD
2005年第6期639-644,共6页
Shanghai Journal of Stomatology
基金
浙江省医药卫生优秀青年科技人才专项科研基金(2004QN016)
关键词
纯钛
种植体
酸蚀
表面结构
Pure titanium
Implants
Acid-etching
Surface topography
