模拟体液浸泡后阳极氧化-水热法处理商用纯钛表面沉积物的表征。
Characterization of the surface deposition on anodized-hydrothermally treated commercially pure titanium after immersion in simulated body fluid.
机构信息
Department of Fixed Prosthodontics, School of Dentistry, Iwate Medical University, Morioka, Iwate, Japan.
出版信息
J Prosthodont Res. 2010 Apr;54(2):70-7. doi: 10.1016/j.jpor.2009.11.003. Epub 2009 Dec 5.
PURPOSE
The interface phenomena between anodized-hydrothermally treated commercially pure titanium (SA-treated c.p.Ti) endosseous implants and biological tissue are important in osseous wound healing. Therefore purpose of this study was to characterize the morphological, structural and chemical features of SA-treated c.p.Ti surfaces after immersion in Hanks' balanced salt solution (HBSS).
METHODS
Anodic oxide (AO) c.p.Ti and SA-treated c.p.Ti disks were immersed for 14 and 28 days in HBSS (37 degrees C, pH 7.4). These samples were analyzed by X-ray photoelectron spectroscopy, X-ray diffraction, scanning electron microscopy, electron probe microanalyzer, and ion chromatography.
RESULTS
X-ray photoelectron spectroscopy and X-ray diffraction patterns were similar in each sample before and after HBSS immersion. Scanning electron microscopy performed after 28 days immersion in HBSS revealed deposits completely covering SA-treated c.p.Ti. However, deposits were not observed on AO c.p.Ti after 14 or 28 days immersion. Electron probe microanalyzer results revealed an even distribution of calcium and phosphorus on SA-treated c.p.Ti after 28 days immersion, however there was no change in AO c.p.Ti disks during all immersion periods. Ion chromatography showed increased levels of calcium and phosphorus on SA-treated c.p.Ti disks compared to AO c.p.Ti disks, after 28 days immersion.
CONCLUSIONS
The results indicate that the deposits formed on SA-treated c.p.Ti surfaces contained calcium phosphate. These deposits may be formed as a consequence of the topography and physicochemical properties of SA-treated c.p.Ti surfaces and may play a key role in osteoconduction during osseous wound healing.
目的
阳极氧化-水热处理的商用纯钛（SA 处理 cpTi）种植体与生物组织之间的界面现象在骨愈合中很重要。因此，本研究的目的是描述 SA 处理 cpTi 表面在浸入 Hank's 平衡盐溶液（HBSS）后的形态、结构和化学特征。
方法
阳极氧化（AO）cpTi 和 SA 处理 cpTi 圆盘分别在 HBSS（37°C，pH7.4）中浸泡 14 天和 28 天。这些样品通过 X 射线光电子能谱、X 射线衍射、扫描电子显微镜、电子探针微分析和离子色谱进行分析。
结果
X 射线光电子能谱和 X 射线衍射图谱在 HBSS 浸泡前后的每个样品中均相似。HBSS 浸泡 28 天后的扫描电子显微镜显示，沉积物完全覆盖了 SA 处理的 cpTi。然而，在 14 天或 28 天的 HBSS 浸泡后，在 AO cpTi 上没有观察到沉积物。电子探针微分析结果显示，在 HBSS 浸泡 28 天后，SA 处理 cpTi 表面的钙和磷均匀分布，但在整个浸泡期间，AO cpTi 盘没有变化。离子色谱显示，与 AO cpTi 盘相比，在 HBSS 浸泡 28 天后，SA 处理 cpTi 盘上的钙和磷水平增加。
结论
结果表明，在 SA 处理 cpTi 表面形成的沉积物含有钙磷。这些沉积物可能是由于 SA 处理 cpTi 表面的形貌和物理化学性质形成的，可能在骨愈合过程中的骨传导中起关键作用。
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