Effect of light-curing units on push-out fiber post bond strength in root canal dentin

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dc.contributor.authorCalixto, L. R.
dc.contributor.authorBandéca, M. C.
dc.contributor.authorSilva, F. B.
dc.contributor.authorRastelli, Alessandra Nara de Souza [UNESP]
dc.contributor.authorPorto-Neto, S. T.
dc.contributor.authorAndrade, M. F.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:23:57Z
dc.date.available2014-05-27T11:23:57Z
dc.date.issued2009-08-01
dc.description.abstractThe purpose of this study was to evaluate the effectiveness of different light-curing units on the bond strength (push-out) of glass fiber posts in the different thirds of the root (cervical, middle and apical) with different adhesive luting resin systems (dual-cure total-etch; dual-cured and self-etch bonding system; and dual-cure self-adhesive cements), Disks of the samples (n = 144) were used, with approximately 1 mm of thickness of 48 bovine roots restored with glass fiber posts, that were luted with resin cements photo-activated by halogen LCU (QTH, Optilux 501) and blue LED (Ultraled), with power densities of 600 and 550 mW/cm 2, respectively. A universal testing machine (MTS 810 Material Test System) was used with a 1 mm diameter steel rod at cross-head speed of 0.5 mm/min until post extrusion, with load cell of 50 kg, for evaluation of the push-out strength in the different thirds of each sample. The push-out strength values in kgf were converted to MPa and analyzed through Analysis of Variance and Tukey's test, at significance level of 5%. The results showed that there were no statistical differences between the QTH and LED LCUs. The self-adhesive resin cement had lower values of retention. The total-etch and self-adhesive system resin cements seem to be a possible alternative for glass fiber posts cementation into the radicular canal and the LED LCU can be applied as an alternative to halogen light on photo-activation of dual-cured resin cements. © 2009 Pleiades Publishing, Ltd.en
dc.description.affiliationAraraquara School of Dentistry Departament of Restorative Dentistry University of São Paulo State, Botucatu, SP
dc.format.extent1867-1871
dc.identifierhttp://dx.doi.org/10.1134/S1054660X09150067
dc.identifier.citationLaser Physics, v. 19, n. 8, p. 1867-1871, 2009.
dc.identifier.doi10.1134/S1054660X09150067
dc.identifier.issn1054-660X
dc.identifier.issn1555-6611
dc.identifier.lattes6914969526213393
dc.identifier.lattes2897622509429759
dc.identifier.scopus2-s2.0-68949211020
dc.identifier.urihttp://hdl.handle.net/11449/71097
dc.language.isoeng
dc.relation.ispartofLaser Physics
dc.relation.ispartofjcr1.158
dc.relation.ispartofsjr0,345
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectBlue LEDs
dc.subjectBond strength
dc.subjectBonding systems
dc.subjectCrosshead speed
dc.subjectDual-cure
dc.subjectFiber posts
dc.subjectLight-curing units
dc.subjectLoad cells
dc.subjectLuting resins
dc.subjectMaterial test system
dc.subjectPhoto-activated
dc.subjectPower densities
dc.subjectPush-out
dc.subjectResin cement
dc.subjectRoot canals
dc.subjectSelf-adhesive
dc.subjectSelf-etch
dc.subjectStatistical differences
dc.subjectSteel rod
dc.subjectStrength values
dc.subjectUniversal testing machines
dc.subjectBond strength (materials)
dc.subjectCell membranes
dc.subjectCements
dc.subjectCuring
dc.subjectFibers
dc.subjectGlass fibers
dc.subjectHydraulic structures
dc.subjectLight transmission
dc.subjectLoad testing
dc.subjectRegression analysis
dc.subjectResins
dc.subjectSteel testing
dc.subjectGlass bonding
dc.titleEffect of light-curing units on push-out fiber post bond strength in root canal dentinen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights
unesp.author.lattes6914969526213393[4]
unesp.author.lattes2897622509429759
unesp.author.orcid0000-0002-6768-2670[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt

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