Compositional Changes of Enamel and Dentine after Er:YAG Laser Irradiation
The aim of the present study was to investigate the organic and inorganic compositions of enamel and dentine after Er:YAG laser irradiation using Fourier-transform Raman spectroscopy (FT-Raman). The enamel and dentine of extracted human teeth were irradiated by Er:YAG laser at an energy density of 29.7 J/cm2. The organic and inorganic components were evaluated from Raman spectra of untreated and laser-treated of extracted human teeth. The results showed that the Raman intensity ratio of the carbonate peak (1067 cm-1) to the phosphate peak (957 cm-1) and the organic peak (2940 cm-1) to the phosphate peak of enamel and dentine decreased after laser irradiation. Therefore, laser treatment can reduce the organic and inorganic components of human enamel and dentine.
S. Suttiruengwong and W. Sricharussin
A. Choeysuppaket et al., "Compositional Changes of Enamel and Dentine after Er:YAG Laser Irradiation", Advanced Materials Research, Vols. 93-94, pp. 529-532, 2010