6533b857fe1ef96bd12b37f7

RESEARCH PRODUCT

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

Fernanda-ribeiro SantanaCarlos-josé SoaresJosemar-martins FerreiraAndréa-dolores-correia-miranda ValdiviJoão-batista-de SouzaCarlos Estrela

subject

UNESCO::CIENCIAS MÉDICASOdontología:CIENCIAS MÉDICAS [UNESCO]Ciencias de la salud

description

Objectives: To evaluate the effect of root canal sealers (RCS) and specimen aging on the bond strength of fibre posts to bovine intraradicular dentin. Material and Methods: 80 teeth were used according the groups - Sealapextm, Sealer 26®, AH Plus® and speci - mens aging - test with no aging and with aging. The canals prepared were fi lled 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 (? = 0.05). Results: No signi fi cant 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. Conclusions: RCS interfered negatively with bonding of fibreglass posts cemented with self-adhesive resin cement to intraradicular dentin.

yearjournalcountryeditionlanguage
2014-01-01
http://hdl.handle.net/10550/41328