Vidigal Guaracilei Maciel, Groisman Mario, de Sena Lídia Agata, Soares Glória de Almeida
Department of Oral Implantology, School of Dentistry, Unigranrio University, Duque de Caxias, Brazil.
Implant Dent. 2009 Aug;18(4):353-61. doi: 10.1097/ID.0b013e3181ac9a3d.
The aim of this study was to characterize implants coated with hydroxyapatite (HA) using 2 different processes.
Commercially pure titanium implants were coated with HA using a modified biomimetic process and the plasma spray process. These implants were characterized by scanning electron microscopy, Fourier-transformed infrared spectroscopy, and x-ray photoelectron spectroscopy.
The plasma spray process generates a typical rough topography mainly consisting of HA. The HA coating produced by biomimetic process was partially dissolved in water and only a very thin layer of calcium titanate plus calcium phosphate and probably beta-tricalcium phosphate remained. In vitro test showed that both coatings can be considered bioactive.
The modified biomimetic process seems to be a simple and low-cost alternative to coat titanium with a high potential of In vitro application.
本研究的目的是对采用两种不同工艺涂覆羟基磷灰石（HA）的植入物进行表征。
使用改良的仿生工艺和等离子喷涂工艺在商业纯钛植入物上涂覆HA。通过扫描电子显微镜、傅里叶变换红外光谱和X射线光电子能谱对这些植入物进行表征。
等离子喷涂工艺产生了主要由HA组成的典型粗糙表面形貌。仿生工艺制备的HA涂层部分溶解于水，仅残留极薄的一层钛酸钙加磷酸钙，可能还有β-磷酸三钙。体外试验表明，两种涂层均具有生物活性。
改良的仿生工艺似乎是一种简单且低成本的方法，可用于涂覆钛，具有很高的体外应用潜力。
Zotero 插件