The results of the study showed there was no statistical
signifi cance in the shear bond strength according to an analysis
of variance (P = 0.207) of the four groups. The mean shear bond
strength of Groups I, II, III, IV were 14.56 ± 2.97 Megapascals
(MPa), 12.62 ± 2.48 MPa, 13.27 ± 3.16, and 12.64 ± 2.56,
respectively. Chi-square comparison for the ARI indicated that
there was a signifi cant diff erence (P = 0.003) between the groups.