10.6084/m9.figshare.5667496.v1 Clecila MÜLLER Clecila MÜLLER Gabriela Cauduro da ROSA Gabriela Cauduro da ROSA Gabriela Simões TEIXEIRA Gabriela Simões TEIXEIRA Ivo KREJCI Ivo KREJCI Tissiana BORTOLOTTO Tissiana BORTOLOTTO Alexandre Henrique SUSIN Alexandre Henrique SUSIN Effect of caries-affected dentin on one-step universal and multi-step etch-and-rinse adhesives’ bond strength SciELO journals 2017 Caries-affected dentin dentinal substrate multimode adhesive system 2017-12-05 09:13:19 Dataset https://scielo.figshare.com/articles/dataset/Effect_of_caries-affected_dentin_on_one-step_universal_and_multi-step_etch-and-rinse_adhesives_bond_strength/5667496 <div><p>Abstract Objective To evaluate the influence of caries-affected dentin on bond strength of a universal one-step and a multi-step etch-and-rinse adhesive system. Material and method Enamel of 60 third human molars with and without caries was removed to expose dentin. The teeth were randomly assigned to six groups: Single Bond Universal (3M ESPE, St. Paul, MN, USA) in etch-and-rinse and in self-etch mode and Prime & Bond NT (Dentsply Co, Konstanz, Germany), all on sound and caries-affected dentin. Smear layer of the 30 sound dentin specimens was standardized by polishing with 600-grit SiC paper under water cooling. Residual infected dentin of the 30 caries-affected specimens was removed with a number 4 CA carbide bur until no caries smooth tissue was detectable by tactile-visual inspection. Cylinders of a light cured composite resin (Filtek Z350 XT, 3M ESPE) were built up using starch tubes and microshear test was performed until failure. The data was analyzed by one-way ANOVA and Tukey’s post hoc test. Result Significant differences in microshear bond strength (μSBS) were observed for the caries-affected groups, but not for sound dentin. The μSBS of Single Bond Universal were not influenced by the application protocol on sound dentin, however they were lower in the caries-affected group with both application protocols. The μSBS for Prime & Bond NT was not influenced by the dentin conditions. Conclusion Caries-affected dentin decrease in bond strength of Single Bond Universal in comparison to sound dentin. The bond strength of Prime & Bond NT was not altered by substrate conditions.</p></div>