Abstract
Surface of alumina-coated titanium implant was observed under an optical microscope, electron micro analyzer and X-ray photoelectron spectroscope after 11 years and 8 months of application.
Favorable intial clinical results were obtained in an alumina-coated titanium implant the same as that of bare titanium implants. Alumina coating of 2μm thick disappeared during application of 11 years. Surface of the implant was composed of organic and inorganic compounds originated in body fluids and titanium oxides.