Effect of the composite photoactivation mode on microtensile bond strength and Knoop microhardness

dc.creatorSilva, ALFE
dc.creatorPereira, GDS
dc.creatorDias, CTS
dc.creatorPaulillo, LAMS
dc.date2006
dc.dateMAR
dc.date2014-11-18T19:50:40Z
dc.date2015-11-26T17:53:34Z
dc.date2014-11-18T19:50:40Z
dc.date2015-11-26T17:53:34Z
dc.date.accessioned2018-03-29T00:37:09Z
dc.date.available2018-03-29T00:37:09Z
dc.identifierDental Materials. Elsevier Sci Ltd, v. 22, n. 3, n. 203, n. 210, 2006.
dc.identifier0109-5641
dc.identifierWOS:000235858900001
dc.identifier10.1016/j.dental.2005.04.017
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/63944
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/63944
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/63944
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1290561
dc.descriptionObjective. This study evaluated the effect of the composite photoactivation mode on microtensile bond strength and Knoop microhardness. Methods. Standard class I cavities (3 x 4 x 3 mm) were restored with two adhesives systems, Single Bond (SB) and Clearfil SE Bond (CE), and the TPH composite. The photoactivation of the composite was carried out using three modes: Conventional (CO: 400 mW/cm(2) x 40s), Soft-Start (SS: 100 mW/cm(2) x 10s + 600 mW/cm(2) x 30s) and Pulse-Delay (PD: 100 mW/cm(2) x 3s + 3 min wait + 600 mW/cm(2) x 37 s). For the microtensite test, beams obtained from the buccal wall bond interface were tested under tension at 0.5 mm/min crosshead speed until failure. For the microhardness test, the restorations were sectioned in the mesio-distal direction and indentations were made on the internal composite surface of each half at three different depths. Data of two tests were analyzed using two-way ANOVA and LSMeans (alpha = 0.05). Results. In the microtensile test, SS presented the highest values. PD presented intermediate values without differing significantly from the other modes. For adhesives, SB presented the highest values. In the microhardness test, PD presented the highest values, differing significantly from SS. CO presented intermediate values but without any statistical difference from the others. The SS-CE interaction presented the lowest values with statistical differences from all the others. Significance. By the SS technique, the highest bond strength was obtained. However, this technique made it possible for the adhesive system to intervene with the hardness of the composite. (c) 2005 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.
dc.description22
dc.description3
dc.description203
dc.description210
dc.languageen
dc.publisherElsevier Sci Ltd
dc.publisherOxford
dc.publisherInglaterra
dc.relationDental Materials
dc.relationDent. Mater.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectphotoactivation mode
dc.subjectpolymerization shrinkage
dc.subjectadhesive system
dc.subjectmicrotensite
dc.subjectKnoop microhardness
dc.subjectPolymerization Contraction Stresses
dc.subjectLight-cured Composites
dc.subjectSelf-etching Primer
dc.subjectResin-composite
dc.subjectCavity Configuration
dc.subjectDental Composites
dc.subjectWall Adaptation
dc.subjectCuring Modes
dc.subjectRestorations
dc.subjectShrinkage
dc.titleEffect of the composite photoactivation mode on microtensile bond strength and Knoop microhardness
dc.typeArtículos de revistas


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