Statistical analysis
While the operator was aware of the intervention, examiners and patients were unaware of the material assignment. The quality of the margin of composite restoration was clinically assessed by two calibrated, experienced, blinded examiners following Ryge’s criteria (USPHS) [The clinical evaluation scores were compared utilizing the Wilcoxon signed-rank test to estimate significant differences among the two materials at an inspection time or within a provided material through time. The variations over time within each group were evaluated using Friedman’s test. The normality of the numerical data was assessed by examining the distribution of data and utilizing normality tests (Shapiro-Wilk and Kolmogorov-Smirnov).