Effect of irrigation acid solutions on cleaning and bond strength to post-space dentin.

Autor: Alencar CM; Department of Restorative Dentistry, School of Dentistry, Araraquara, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil., Zaniboni JF; Department of Restorative Dentistry, School of Dentistry, Araraquara, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil., Besegato JF; School of Dentistry, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Mato Grosso do Sul, Brazil., Barros APO; Department of Restorative Dentistry, School of Dentistry, Araraquara, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil., Gélio MB; Department of Restorative Dentistry, School of Dentistry, Araraquara, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil., Belizário LG; Department of Restorative Dentistry, School of Dentistry, Araraquara, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil., Godoy EMF; Instituto de Ciencias Biomédicas, Universidad Autonoma de Chile, Santiago, Chile., Kuga MC; Department of Restorative Dentistry, School of Dentistry, Araraquara, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil.
Jazyk: angličtina
Zdroj: European journal of oral sciences [Eur J Oral Sci] 2023 Aug; Vol. 131 (4), pp. e12939. Date of Electronic Publication: 2023 Jun 09.
DOI: 10.1111/eos.12939
Abstrakt: This study evaluated the effects of irrigating solutions containing 5% boric acid + 1% citric acid or 1% peracetic acid + high concentration hydrogen peroxide on root cleaning and bond strength of cementation systems after 24 h and 6 months of glass fiber post cementation. One hundred and twenty roots were endodontically treated. The specimens were randomized into one of four treatments (n = 10): DW (distilled water); NaOCl 2.5% + EDTA 17% (2.5% sodium hypochlorite solution + 17% EDTA); PA 1% + HP (1% peracetic acid solution + high concentration of hydrogen peroxide); BA 5% + CA 1% (5% boric acid associated with 1% citric acid). The cleaning efficacy in the cervical, middle, and apical thirds of the post-space, and the push-out bond strength at 24 h and 6 months after post cementation were evaluated by Kruskal-Wallis and two-way ANOVA tests, respectively. BA 5% + CA 1% showed statistically significantly superior cleaning efficacy compared to the other solutions. This irrigation protocol also resulted in higher bond strength at 24 h and 6 months, regardless of the root third considered, and this was statistically significantly higher than those seen for DW and PA 1% + HP. For BA 5% + CA 1% irrigation protocol, type 1 adhesive failure was the most prevalent. Post-space irrigation with BA 5% + CA 1% provided both higher cleaning efficacy and better bond strength.
(© 2023 Scandinavian Division of the International Association for Dental Research. Published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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