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Type: Artigo de periódico
Title: Influence Of Cement Type And Relining Procedure On Push-out Bond Strength Of Fiber Posts After Cyclic Loading
Author: Farina A.P.
Chiela H.
Carlini-Junior B.
Mesquita M.F.
Miyagaki D.C.
Randi Ferraz C.C.
Vidal C.M.P.
Cecchin D.
Abstract: Purpose: The aim of this study was to evaluate the influence of cement type and relining procedure on push-out bond strength of fiber posts (FPs) after cyclic loading. Materials and Methods: Forty bovine incisor roots were divided into four groups: group 1, FP luting with RelyX Unicem; group 2, FP relined with resin composite (FPC) luting with RelyX Unicem; group 3, FP luting with RelyX ARC; group 4, FPC luting with RelyX ARC. Afterwards, half the specimens were exposed to 250,000 cycles in a controlled chewing simulator. With the other half of the specimens in each group, the push-out test was performed 24 hours after FP luting (immediate groups). All roots were sectioned transversely, producing 1-mm-thick slices, and the push-out test was performed. Statistical analysis was performed using ANOVA and the Tukey test for post hoc comparisons (α = 0.05). Results: FPC had higher bond strengths than FP (p < 0.05). RelyX Unicem showed higher bond strength than RelyX ARC (p < 0.05). Cyclic loading did not significantly affect the bond strength value (p > 0.05). Conclusion: The relining procedure and the cement type are important factors for the bond strength of FPs to root dentin.
Editor: Blackwell Publishing Inc.
Rights: fechado
Identifier DOI: 10.1111/jopr.12271
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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