Hydroxyapatite is the main component of inorganic materials of bone and tooth, and has been many reported for basic examination and clinical application as medical materials. But commercial synthetic apatite component differ between companies because of its sintering or synthetic method, and its components differ from biological apatite at that.
Then, we compared apatite compositions in order to test differences between bone apatite and commercial synthetic apatite or not. The analysis of composition examined by Infrared Fourier Transform spectrometer 7000 type (made by Japan Spectroscopic Co.,Ltd.) and measured spectra subtracted from commercial synthetic apatite (Bonetite, Apaceram)to bone apatite.
As the results, 1)The composition differs from synthetic and bone apatite. 2)Furthermore, there was different compositions of commercial synthetic apatites with each other.
Accordingly, it became necessary that we should consider the differences of apatite composition in living tissue.
