Microstructure Of Improved Tooth Surface Using Fine Hydroxyapatite Powder

Human teeth were scratched by the abrasive paper, dropping in hydroxyapatite solution during 1, 2, 3, 4 months. We studied teeth surface change with SEM each months. After 1 months treatment the surface appeared the change. Because of the hydroxyapatite ion exchange mechanism. The scratched surface was recovered by the hydroxyapatite. The results of EDS showed that Ca2+ ion and PO43- ion were removed from hydroxyapatite solution to scratched teeth surface.