Abstract
Apatite formation on titanium or partially stabilized zirconia disks in simulated body fluid was investigated in order to clear the influence of ultraviolet irradiation to both substrates on the enhancement of bone formation. The structural analysis of deposited crystals was performed by x-ray diffraction and Fourier-transform infrared measurements, and the deposition behavior of crystals was observed by the scanning microscope.
The deposited crystals on each substrate in simulated body fluid were carbonate apatite. The deposition amounts of apatite on each substrate were not influenced by ultraviolet irradiation, but apatite deposition was progressed at the early stage of the immersion by ultraviolet irradiation. The adhesiveness between apatite crystals and titanium or partially stabilized zirconia tended to be improved by ultraviolet irradiation. The bonding ability of apatite crystals to titanium was better than that to partially stabilized zirconia.
