IADR Abstract Archives
Comparison of Remineralizing Efficacy of Bioactive Dental Varnishes
Objectives: The effectiveness of fluoride varnish, sodium-tri-metaphosphate treated eggshell and membrane powder varnish, and bioactive glass-fluoride varnish in preventing erosion were evaluated.
Methods: Two windows were created for the etching cycle on the buccal face of 72 molars. One of the windows was used for varnishes [Fluor varnish (FV, Metroberry, Imicryl), STMP treated eggshell and membrane powder varnish (ESPV, Bio Viera, Imicryl), and bioactive glass varnish (BAGV, Polimo, Imicryl)], and the other as an untreated control. The erosion cycle was applied with acidic syrup (Atarax) 3 times a day and a beverage (Coca-Cola) 4 times a day for 5 days. Samples were analyzed with SEM (Scanning Electron Microscopy) (n=1), ATR-FTIR (Fourier Transform Infrared Spectroscopy) (n=6), and Vicker's hardness tester (n=5). Data were statistically analyzed with One-Way ANOVA and Tukey HSD test.
Results: The protective effects of the varnishes were observed in the obtained SEM images. In the comparison between the groups, a difference was found between the FV and ESPV groups in terms of v2 CO3-2 peak spectrum and microhardness values (p<0.05). No difference was observed between the CO3-2 and PO4-3 peak spectra in the varnish groups demineralized with acidic syrup, and beverage and in the control groups (p>0.05). There was no difference in the CO3-2/PO4-3 ratios between the groups (p>0.05). According to microhardness analysis, the BAGV group demineralized with acidic syrup and the FV group demineralized with acidic beverages were similar to the control group (p>0.05). Other groups were different from the control group (p<0.05).
Conclusions: The ESPV and BAGV showed a similar protective effect with fluoride varnishes against erosion. It has been shown that the investigated varnishes can be used as an alternative to fluoride varnishes for protection from acid erosion.
Methods: Two windows were created for the etching cycle on the buccal face of 72 molars. One of the windows was used for varnishes [Fluor varnish (FV, Metroberry, Imicryl), STMP treated eggshell and membrane powder varnish (ESPV, Bio Viera, Imicryl), and bioactive glass varnish (BAGV, Polimo, Imicryl)], and the other as an untreated control. The erosion cycle was applied with acidic syrup (Atarax) 3 times a day and a beverage (Coca-Cola) 4 times a day for 5 days. Samples were analyzed with SEM (Scanning Electron Microscopy) (n=1), ATR-FTIR (Fourier Transform Infrared Spectroscopy) (n=6), and Vicker's hardness tester (n=5). Data were statistically analyzed with One-Way ANOVA and Tukey HSD test.
Results: The protective effects of the varnishes were observed in the obtained SEM images. In the comparison between the groups, a difference was found between the FV and ESPV groups in terms of v2 CO3-2 peak spectrum and microhardness values (p<0.05). No difference was observed between the CO3-2 and PO4-3 peak spectra in the varnish groups demineralized with acidic syrup, and beverage and in the control groups (p>0.05). There was no difference in the CO3-2/PO4-3 ratios between the groups (p>0.05). According to microhardness analysis, the BAGV group demineralized with acidic syrup and the FV group demineralized with acidic beverages were similar to the control group (p>0.05). Other groups were different from the control group (p<0.05).
Conclusions: The ESPV and BAGV showed a similar protective effect with fluoride varnishes against erosion. It has been shown that the investigated varnishes can be used as an alternative to fluoride varnishes for protection from acid erosion.