Bond strength of universal adhesive applied to dry and wet dentin: One-year in vitro evaluation

• Autor(a) principal: de Alencar e Silva Leite, Maria Luísa [UNESP]
• Data de Publicação: 2020
• Outros Autores: de Farias Charamba, Caroline, Wanderley e Lima, Renally Bezerra, Meireles, Sônia Saeger, Duarte, Rosângela Marques, de Andrade, Ana Karina Maciel
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.20396/BJOS.V19I0.8658220; http://hdl.handle.net/11449/198803
• topic: Dental cements; Dentin; Tensile strength

Aim: This study evaluated the inluence 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 signiicant 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.