The aim was to evaluate the influence of Nd:YAG laser on the durability of resin-dentin bonds. Nd:YAG laser was applied on dentin of extracted human molars previously the application of Adper Single Bond 2 (SB) and Clearfil SE Bond (SE) adhesive systems. Twenty five beams for each group were submitted to microtensile bond strength (μTBS) after storage for 24 h and 7 months. According to three-way analysis of variance and Bonferroni test (α = 0.05), the lowest means were obtained with SE groups. Higher means were obtained for SB. The laser did not significantly implicate the bond durability in a period of 7 months for both adhesive systems.
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