INFLUENCE OF DIFFERENT ENDODONTIC SEALERS ON FIBERGLASS POST ADHESION

RAFAEL NESELLO, ISADORA AMES SILVA, IGOR ABREU DE-BEM, KAROLINA BISCHOFF, MATHEUS ALBINO SOUZA, MARCUS VINÍCIUS REIS SÓ, RICARDO ABREU DA ROSA

Abstract


The aim of this study was to evaluate the influence of different endodontic sealers on fiberglass posts adhesion, using conventional and self-adhesive resin cements. Sixty single-rooted human teeth were selected. Canals were prepared with X1Blue 40.06 (MK Life). Roots were randomly distributed in six groups (n=10) as follows: G1) AH Plus/RelyX ARC; G2) AH Plus/RelyX U200; G3) BioC Sealer/RelyX ARC; G4) BioC Sealer/RelyX U200; G5) Sealer Plus BC/RelyX ARC; G6) Sealer Plus BC/RelyX U200. The roots were perpendicularly sectioned and three slices per root were obtained, each corresponding to a post third (cervical, middle and apical). Push-out test was performed. To analyze the failure pattern, specimens were analyzed under an optical microscope at 10× magnification. Bond strength was calculated and analyzed using ANOVA and Tukey tests with a significance level of 5%. The bond strength values of posts cemented with conventional resin cement (RelyX ARC) or with self-adhesive resin cement (RelyX U200) previously filled with AH Plus were similar (P > 0.05). The lowest bond strength values were observed for the groups in which bioceramic sealers and conventional resin cement were associated (Bio C Sealer/RelyX ARC and Sealer Plus BC/RelyX ARC) (P < 0.05). Adhesive failures between cement and post, and between cement and dentin were predominant (55.3%). Bioceramic sealers negatively influenced the bond strength values of fiber posts cemented with conventional resin cement.


Keywords


Root canal filling; Endodontic cement; Fiber post



DOI: http://dx.doi.org/10.19177/jrd.v9e62021%25p

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Journal of Research in Dentistry, University of Southern of Santa Catarina, Santa Catarina, ISSN 2317-5907

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