Mean color change (ΔE) results are shown in Tables 2 and 3. The initial bleaching resulted in minimal color changes (ΔE1< 2) in all subgroups regardless of the bleaching agent used. Tukey’s Post Hoc test indicated no significant difference between DF and TPH3 in both composite shades (Tables 2 and 3). However, Beyond showed significantly higher bleaching results (P=0.009) in shade A2 only as compared to the other groups.