Table 5. Descriptive statistics of the shear bond strength data following the mechanical treatment of the substrate.

Two-Way Analysis of Variance, Tukey test for post hoc comparisons.

^a,bThe different superscript letters indicate a statistically significant difference in the bonding conditions achieved by roughening with the two abrasives, regardless of the type of polymethylmethacrylate (PMMA)-based material (p < 0.001).