Evaluation of Shear Bond Strength of a Grander-Modified Adhesive System to Bovine Dentin

Purpose: The objective of this study was to evaluate the influence of the Grander technology on the shear bond strength of total-etch adhesive system Single Bond 2 to dentin. Materials and methods: Forty bovine incisors were used. They were sectioned and the buccal surfaces worn down with abrasive paper. Acid etching was performed, and the specimens were divided into two groups (n = 20): Group G1—Single Bond 2 adhesive system (3M ESPE) under normal conditions; group G2—Single Bond 2 adhesive system modified by physical contact for 48 hours with the flexible unit Grander system. The resin composite was inserted with the aid of a metallic matrix over the prepared area. After the mechanical shear test, data were submitted to the statistical t-test (5%). The t-test showed that the results for G1 and G2 were similar (p > 0.05). The mean values (± SD) were: G1—6.66 (± 2.40); G2—5.26 (± 2.15). Conclusion: Grander technology did not influence the initial shear bond strength of the Single Bond 2 adhesive system to dentin.