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

• Aryvelto-Miranda Silva ^[1] ; Cristiane-de Melo Alencar ^[1] ; Fernanda-Ferreira-de Albuquerque Jassé ^[2] ; Victor-Feliz Pedrinha ^[3] ; Joissi-Ferrari Zaniboni ^[1] ; Andréa-Abi-Rached Dantas ^[1] ; Edson-Alves de Campos ^[1] ; Milton-Carlos Kuga ^[1]
  1. [1] Universidade Estadual Paulista

     Universidade Estadual Paulista

     Brasil

     
  2. [2] Universidad Federal de Pará

     Universidad Federal de Pará

     Brasil

     
  3. [3] Universidade de São Paulo

     Universidade de São Paulo

     Brasil

     

  Mostrar afiliaciones +
• Localización: Journal of Clinical and Experimental Dentistry, ISSN-e 1989-5488, Vol. 13, Nº. 6 (June), 2021, págs. 564-571
• Idioma: inglés
• Enlaces
  • Texto completo
• Resumen

  • 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.

    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 (α= 0.05).

    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).

    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.