Objective To study the effect of alkali-and-heat treatment combined with ultraviolet irradiation on properties of titanium surface and the ability of inducing hydroxyapatite( HA) deposition. Methods The specimens were divided into three groups,which were treated by sandblast and acid-etch( SLA),SLA with alkali-and-heat treatment( AAH),AAH with ultraviolet irradiation( UV). The physicochemical properties of these titanium were tested. HA deposit was examined by SEM with EDX and X-ray diffraction( XRD) after ...