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

Autor:	Silva AM; Department of Restorative Dentistry, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, SP, Brazil., Alencar CM; Department of Restorative Dentistry, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, SP, Brazil., Jassé FA; School of Dentistry, Federal University of Para (UFPA), Belém, PA, Brazil., Pedrinha VF; Department of Restorative Dentistry, Bauru School of Dentistry, University of Sao Paulo (USP), Bauru, SP, Brazil., Zaniboni JF; Department of Restorative Dentistry, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, SP, Brazil., Dantas AA; Department of Restorative Dentistry, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, SP, Brazil., de Campos EA; Department of Restorative Dentistry, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, SP, Brazil., Kuga MC; Department of Restorative Dentistry, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, SP, Brazil.
Jazyk:	angličtina
Zdroj:	Journal of clinical and experimental dentistry [J Clin Exp Dent] 2021 Jun 01; Vol. 13 (6), pp. e564-e571. Date of Electronic Publication: 2021 Jun 01 (Print Publication: 2021).
DOI:	10.4317/jced.58029
Abstrakt:	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 (α= 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. Key words: Fiber post, adhesive cementation, self-adhesive resin cement, root dentin, irrigating solutions. Competing Interests: Conflicts of interest The authors declare that they have no conflicts of interest. (Copyright: © 2021 Medicina Oral S.L.)
Databáze:	MEDLINE
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