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The comparison of the spectra of tooth enamel: 1 -before curettage, 2 -after curettage
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The results of the research of enamel of periodontitis-affected teeth before and after open curettage are presented in the work. The Raman spectroscopy method was used as an evaluation method of curettage influence on tooth enamel. Chemometric analysis of the Raman spectra of tooth enamel before and after curettage was made. Spectral changes of too...
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Context 1
... Raman spectroscopy method was implemented by the experimental stand (Figure 2), that included Raman probe PBL 785 combined with the laser module LuxxMasterLML-785.0RB-04 (power up to 500 mW, wavelength of 784.7 ± 0.05 nm) and high resolution digital spectrometer Shamrocksr303i providing spectral resolution of 0.15 nm with build-in cooling camera DV-420A-OE [8] Figure 2. Experimental stand: 1-studied subject; 2 -Raman probe RPB 785; 3 -laser module LuxxMaster LML-785.0RB-04; 4 -spectrometer Shamrock sr-303i; 5 -computer; 6 -cooling camera DV420A-OE The detailed analysis of the Raman spectra was made using the software MagicPlotPro, and with the use of the method of linear discriminant analysis (LDA) in the software IBM SPSS Statistics [9]. Figure 3 shows the average Raman spectra of the samples of periodontitis-affected teeth before and after curettage. The spectral changes related to the change of mineral components after open curettage are caused by the fact that calculus is been removed in the process of open curettage (the process of calculus forming is accompanied by enamel hypomineralization), thus causing the reduction of enamel mineralization [5]. ...
