Shear Bond Strength of Brackets Bonded to Enamel with a Self-Etching Primer Pithon MM et al. - There were no significant differences between the SBS of groups 0, 1, 3, 7, and 15 However, those groups had higher SBS compared with groups 21 and 30. No significant difference was observed between groups 21 and 30. Despite the decrease in SBS for groups 21 and 30, bond strength values were still satisfactory. [more...]