O efeito das bebidas energéticas e hidroeletrolíticas na estabilidade de cor e fluorecência de resinas compostas

Abstract

Objective: The objective of this study was to evaluate the effects of energy and hydroelectrolytic beverages on the color stability and fluorescence of composite resins. Materials and methods: Three composite resins (T0), one month (T1), two months (T2) and three months (T3) of storage were analyzed in four time periods. Thirty specimens of each material (n = 30) were prepared and randomly immersed in three experimental subgroups determined by the type of solution, Gc (distilled water/control), Gr (Redbull energy drink) and Gg ( Gatorade hydroelectrolytic beverage) during 1h a day, kept in an oven at 37º C for 23 hours. Color stability and fluorescence tests were performed. Data analysis: The Shapiro Wilk test was used to evaluate the normality of all data (P> 0.05) and the Levene test confirmed the homogeneity of variances for all dependent variables (P> 0.05). The analysis of variance (ANOVA) of three factors for repeated measurements was used to evaluate the influence of the material (composite resin) (factor 1, 3 levels), immersion solution (factor 2, 3 levels) and time (3 levels for change color and 4 levels for fluorescence) in color change and fluorescence values. The Bonferroni test was used as a post-hoc test to compare the mean values between the study groups. Statistical software (IBM SPSS Statistics v20.0; IBM Corp) was used and a significance level of 5% (α = 0.05) was used for all analyzes. Results: For color change and fluorescence data the 3-factor ANOVA for repeated measurements showed a significant influence for all the isolated factors and all their interactions. Conclusion: Energy and hydroelectrolytic beverages altered the color satability and fluorescence of the composite resins studied at all time points. Key words: composite resins, energy drinks, hydroelectrolytic beverages, color stability, fluorescence.