抄録
Bonelike apatite formation on the surface of calcium phosphate glasses was examined in simulated body fluid (SBF) at 37°C. The apatite particles were deposited on 60CaO·30P2O5·10TiO2 (in mol%) glass containing P2O72- and PO43- ions in 20 days by the soaking, while no apatite particles were deposited on 55CaO·35P2O5·10TiO2 and 50CaO·40P2O5·10TiO2 glasses even by soaking for 30 days. The apatite formation may be influenced by characters of calcium phosphate gel layers, which are formed on the glasses at an initial stage after the soaking in SBF.