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ORIGINAL ARTICLE
Year : 2020  |  Volume : 9  |  Issue : 1  |  Page : 7-10

Influence of irrigating solutions and post luting on bond strength of fiber posts after aging


1 Department of Dental Materials, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil
2 Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil
3 Department of Dentistry, Faculty of Sciences of Health, Federal University of Jequitinhonha and Mucuri Valley, Diamantina, Minas Gerais, Brazil

Correspondence Address:
Dr. Lúcia Trazzi Prieto
Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas, Av: Limeira, 901 - Areião, Piracicaba, São Paulo
Brazil
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ejgd.ejgd_95_19

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Aim: The study aimed to evaluate the influence of irrigating solutions on bond strength (BS) of fiber posts using different luting systems after aging. Methods: Bovine teeth (N = 96) were randomly (8 groups, N = 12), sectioned, endodontically treated and root canals were prepared. The 96 bovine teeth were divided into four groups according to luting systems as conventional light-cure (RelyX ARC), self-adhesive (RelyX U200 and Panavia F),dual - cure self - etch, and self - adhesive (SeT PP). Each of the four groups was further divided into two subgroups using 2% chlorhexidine (CHX) gel or 5.25% sodium hypochlorite (NaOCl) as the irrigating solution. After post cementation, the metal-ceramic crowns were positioned. After 48 h, all samples were submitted to 1,000,000 thermal cycles. After water storage, push-out test was performed. The data were analyzed using two-way ANOVA and Tukey's test (P = 0.05). Results: CHX gel BS means were statistically higher than NaOCl means when posts were cemented with the conventional or dual-cure self-etch and self-adhesive resin cements; no significant statistical differences were observed between groups CHX gel or NaOCl treatments for the dual-cure self-adhesive resin cements. Conclusion: The irrigation solution used on endodontic treatment before luting procedures with conventional or dual-cure self-etch and self-adhesive resin cements of glass fiber posts improved long-term BS after aging.


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