The order of calcium and phosphate ion deposition on chemically treated titanium surfaces soaked in aqueous solution

The mechanism of apatite deposition on chemically treated Ti surfaces still is being studied. In this study, simulated body fluid, calcium aqueous sol ution, phosphate aqueous solution, and accelerated calcification solution a re used as media to investigate the order of calcium and phosphate ion depo sition on chemically treated Ti surfaces. The results of inductively couple d plasma spectra, scanning electron microscopy, and energy dispersive X-ray analysis show that calcium deposition is the prerequisite for phosphate io n deposition. (C) 1999 John Wiley & Sons, Inc.