Effect of post-space irrigation with acid solutions on bond strength and dentin penetrability using a self-adhesive cementation system

• Autor(a) principal: Silva, Aryvelto-Miranda [UNESP]
• Data de Publicação: 2021
• Outros Autores: Alencar, Cristiane-De Melo [UNESP], Jassé, Fernanda-Ferreira-De Albuquerque, Pedrinha, Victor-Feliz, Zaniboni, Joissi-Ferrari [UNESP], Dantas, Andréa-Abi-Rached [UNESP], de Campos, Edson-Alves [UNESP], Kuga, Milton-Carlos [UNESP]
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.4317/jced.58029; http://hdl.handle.net/11449/228985
• topic: adhesive cementation; Fiber post; irrigating solutions; root dentin; self-adhesive resin cement

Background: The aim of this study was to evaluate the effects of surface treatments with 1% peracetic acid (PA), solution containing 17% EDTA (SmearClear, Kerr Endodontics), solution containing a combination of 17% EDTA with 2% chlorhexidine (QMix, Dentsply Sirona) on the post-space root dentin compared to 2.5% sodium hypochlorite (NaOCl) on bond strength and resin tags length in dentin. Material and Methods: Forty human-canine roots were endodontically treated and the post space was prepared. The specimens were randomised into four groups (n = 10): control - irrigation with 2.5% NaOCl solution, PA - irrigation with 1% PA, SmearClear - irrigation with SmearClear solution, and QMix - irrigation with QMix solution. The fibre posts were cemented using a self-adhesive resin system (Relyx U200, 3M ESPE). After six months, the specimens were cross-sectioned and subjected to push-out and confocal laser microscopy tests. One-way ANOVA and Tukey's tests were used to analyse the data (a= 0.05). Results: PA and QMix presented the highest bond strength values compared to the other groups (p < 0.05). There was no significant difference between the resin tags length in dentin by the groups (p = 0.75). Conclusions: Irrigation of the post space with 1% PA and QMix showed a positive clinical impact on the adhesion between the fiber post and root dentin. However, these materials had no influence on resin tags length in dentin by self-adhesive resin cement.