EVALUATION OF THE COLOR CHANGE AND SURFACE ROUGHNESS OF REINFORCED COMPOSITE (BRILIANT CRIOS) AFTER IMMERSION IN ACIDIC BEVERAGE: AN IN-VITRO STUDY

Objective: Evaluate the color change and surface roughness of reinforced composite (BRILIANT CRIOS) after immersion in artificial saliva then acidic beverage (Pepsi). Materials & Methods: Samples from reinforced composite (BRILIANT CRIOS) were immersed in artificial saliva and acidic beverage (Pepsi). A total of 23 samples were prepared 1mm in thickness and (14 × 12 × 18 (mm) in dimensions. The average color change (Delta E*) was computed following immersion in artificial saliva and an acidic beverage. Using spectrophotometer analysis, color parameters were assessed both before and after the immersion. The surface roughness was measured with a non-contact profilometer. The Shapiro-Wilk test was used for statistical analysis. Data had a parametric distribution, thus we used repeated measures ANOVA and the Bonferroni post hoc test to examine them. The significance level was set at P ≤ 0.05. Results: showed that the color change of Brilliant Crios samples immersed in Pepsi ΔE 2 was significantly higher than artificial saliva ΔE 1 while Pepsi samples had the highest surface roughness rating, followed by baseline samples, while artificial saliva samples had the lowest value. Conclusion: reinforced composite (BRILIANT CRIOS) samples showed color changes above the clinical acceptable limit when immersed in artificial saliva and Pepsi in comparison to surface roughness beyond the clinically acceptable level after immersion in acidic beverage (Pepsi).