Shear Bond Strength of One-Step and Two-Step Self-Etching Adhesive Systems for Bonding Ceramic Brackets
The objective of this study was to compare the mean shear bond strength values among total-etching, two-step and one-step self-etching adhesive systems for bonding ceramic brackets. Sixty upper first premolars were randomized and categorized into three groups, in each of which the teeth were bonded to ceramic brackets using one of the adhesive systems. Mean shear bond strength values were measured by using an universal testing machine at a crosshead speed of 0.5 millimeters per minute. The results of oneway ANOVA indicated that the mean shear bond strength values of the two-step and one-step adhesive systems were significantly lower than those of the total-etching adhesive system (p< 0.05). However, there was no significant difference between the two-step and one-step adhesive systems.
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