23 生体機能を利用した生体融合材料の創製

概要

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The present authors previously showed that titanium metal also forms the bone like apatite layer on its surface in simulated body fluid, when it has been previously treated with NaOH aqueous solution to form a sodium titanium hydro gel layer on its surface. Thus it is expected that alkali treated titanium alloy metal could also form the bone like apatite layer on its surface in the living body and bond to living bone through the apatite layer. The gel layer as formed by the alkali treatment is, however, not mechanically stable, and hence, the alkali treated titanium alloy is not suitable for clinical applications. Studies have demonstrated that the bone bonding ability of a titanium alloy material could be evaluated by testing the titanium material in a simulated body fluid. It was the objective of this study, as the first phase of our program addressing the subject of bone bonding alkali treated titanium implants; to investigate the potential of alkali treated titanium for inducing apatite formation in a SBF. And also, the influence of simulated body fluid corrosion upon the mechanical properties and changes in microstructure of alkali treated titanium alloy was investigated.
社団法人日本機械学会の論文
2002-08-06