Effect of root canal sealer and artificial accelerated aging on fibreglass post bond strength to intraradicular dentin

• Published in: Journal of clinical and experimental dentistry Vol. 6; no. 4; pp. e350 - 6
• Main Authors: Santana, Fernanda-Ribeiro, Soares, Carlos-José, Ferreira, Josemar-Martins, Valdivi, Andréa-Dolores-Correia-Miranda, Souza, João-Batista-de, Estrela, Carlos
• Format: Journal Article
• Language: English
• Published: Spain Medicina Oral S.L 01.10.2014
• ISSN: 1989-5488; 1989-5488
• DOI: 10.4317/jced.51465

To evaluate the effect of root canal sealers (RCS) and specimen aging on the bond strength of fibre posts to bovine intraradicular dentin. 80 teeth were used according the groups - Sealapextm, Sealer 26®, AH Plus® and specimens aging - test with no aging and with aging. The canals prepared were filled using one of each RCS. The posts were cemented. Roots were cross-sectioned to obtain two slices of each third. Samples were submitted to push-out test. Failure mode was evaluated under a confocal microscope. The data were analysed by ANOVA, Tukey's, and Dunnet tests (α = 0.05). No significant difference was detected among RCS. Aged control presented higher bond strength than immediate control. The aging did not result significant difference. Adhesive cement-dentin failure was prevalent in all groups. RCS interfered negatively with bonding of fibreglass posts cemented with self-adhesive resin cement to intraradicular dentin. Key words:Fibreglass post, bond strength, root dentin, endodontic sealer, aging.