Bond strength of universal adhesive applied to dry and wet dentin

one-year in vitro evaluation




Dental cements, Dentin, Tensile strength


Aim: This study evaluated the influence of dentin wettability on the immediate and extended microtensile bond strength (mTBS) of a universal adhesive system used in the etch-and-rinse strategy. Methods: Twenty human third molars were selected and divided into four groups according to the adhesive system and dentin wettability. The mTBS values of each group were registered 24 h and one year after adhesive system application and resin composite block build-up (n=30). Data were analyzed by the t-test (p<0.05). Results: When both adhesive systems were compared, there was no statistically significant difference when they were applied following wet bonding (p>0.05). However, the dry bonding reduced μTBS values of the Adper Single Bond 2 adhesive (p<0.05). Regarding storage time, both groups presented similar μTBS values at 24 h and one year (p>0.05). Conclusions: Therefore, the Scotchbond Universal Adhesive can be applied to dry or wet dentin without compromising the etch-and-rinse bonding quality and the durability of the restorations.


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Author Biographies

Maria Luísa de Alencar e Silva Leite, São Paulo State University

Department of Dental Materials and Prosthodontics of the São Paulo State University. School of Dentistry, Araraquara.

Caroline de Farias Charamba, Federal University of Paraíba

Department of Restorative Dentistry of the Federal University of Paraíba.

Renally Bezerra Wanderley e Lima, State University of Campinas

Department of Restorative Dentistry of the Piracicaba Dental School, State University of Campinas.

Sônia Saeger Meireles, Federal University of Paraíba

Department of Restorative Dentistry of the Federal University of Paraíba.

Rosângela Marques Duarte, Federal University of Paraíba

Department of Restorative Dentistry of the Federal University of Paraíba.

Ana Karina Maciel de Andrade, Federal University of Paraíba

Department of Restorative Dentistry of the Federal University of Paraíba.


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How to Cite

Leite ML de A e S, Charamba C de F, Lima RBW e, Meireles SS, Duarte RM, Andrade AKM de. Bond strength of universal adhesive applied to dry and wet dentin: one-year in vitro evaluation. Braz. J. Oral Sci. [Internet]. 2020Mar.9 [cited 2020Nov.26];190:e201662. Available from:

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