[Surface morphology and surface properties of Ti and TiZr implant materials].

Objective: To investigate the effects of hydrophilic treatment on the surface morphology and surface properties of pure titanium and titanium-zirconium alloy implants, and to provide reference for the studies of implant surface modification. Methods: The pure titanium group, the hydrophilic pure titanium group, the titanium zirconium alloy group and the hydrophilic titanium-zirconium alloy group were prepared by sandblasting and acid-etching or hydrophilic sandblasting and acid-etching, (11 specimens in each group). The surface morphology and surface properties of four types of titanium specimens were analyzed by surface contact angle meter, scanning electron microscope (SEM), optical profilometer, atomic force microscope (AFM) and Raman spectrometer. Results: The surface contact angles of hydrophilic pure titanium and hydrophilic titanium-zirconium alloy were 1.6°±0.3° and 1.5°±0.2°, and the surface contact angles of pure titanium and titanium-zirconium alloy were 101.4°±4.6° and 96.2°±3.0°, respectively. SEM showed that the nano-protrusions on the surface of pure titanium and titanium-zirconium alloys were less or even absent, while the nano-protrusions on the surface of hydrophilic pure titanium and hydrophilic titanium-zirconium alloys were relatively more; the nano-protrusions on the surface of hydrophilic pure titanium surface were small and dense relatively, but the nano-protrusions of the hydrophilic titanium-zirconium alloy had large diameters and were dispersed relatively. The optical profiler and AFM showed that the surface roughness of hydrophilic pure titanium and hydrophilic titanium-zirconium alloy was significantly higher than that of pure titanium and titanium-zirconium alloy (P<0.05). Raman spectroscopy showed that only the amorphous TiO(2) was present on the surface of the pure titanium group, while the rutile TiO(2) characteristic peak was observed in the other three groups, but the lateral inhomogeneity was observed. After Raman shift 610 cm(-1), the Raman spectra of four groups were similar. Conclusions: Hydrophilic sandblasting and acid-etching treatment can improve the surface hydrophilicity and surface roughness of pure titanium and titanium zirconium alloy, and improve the surface properties of pure titanium and titanium zirconium alloy implants.目的： 探讨亲水处理对纯钛和钛锆合金种植体表面形貌及表面特性的影响，为种植体表面改性研究提供参考。 方法： 使用喷砂酸蚀或喷砂酸蚀+亲水处理的方法，制备纯钛组、亲水性纯钛组、钛锆合金组、亲水性钛锆合金组试件（每组11个）。通过表面接触角仪、扫描电镜、光学轮廓仪、原子力显微镜（atomic force microscope，AFM）以及拉曼光谱仪分析4组钛试件表面形貌及表面特性。 结果： 亲水性纯钛及亲水性钛锆合金表面接触角分别为1.6°±0.3°和1.5°±0.2°，纯钛及钛锆合金表面接触角分别为101.4°±4.6°和96.2°±3.0°。扫描电镜显示纯钛及钛锆合金表面的纳米突起较少甚至缺如，亲水性纯钛及亲水性钛锆合金表面的纳米突起则相对较多；亲水性纯钛表面纳米突起直径小且相对密集，亲水性钛锆合金表面纳米突起直径大且相对分散。光学轮廓仪及AFM显示亲水性纯钛和亲水性钛锆合金表面粗糙度均显著大于纯钛及钛锆合金（P<0.05）。拉曼光谱分析可见纯钛组表面仅存在非结晶型TiO(2)，而另3组均可见金红石型TiO(2)特征峰，但表现为横向不均匀性，在拉曼位移610 cm(-1)后4组拉曼光谱相似。 结论： 喷砂酸蚀+亲水处理可提高纯钛和钛锆合金的表面亲水性与表面粗糙度，提高纯钛和钛锆合金种植体的表面性能。.