Influence of the LED curing source and selective enamel etching on dentin bond strength of self-etch adhesives in class I composite restorations

dc.creatorSouza, EJ
dc.creatorAraujo, CTP
dc.creatorPrieto, LT
dc.creatorPaulillo, LAMS
dc.date2012
dc.dateNOV
dc.date2014-08-01T18:32:20Z
dc.date2015-11-26T17:57:42Z
dc.date2014-08-01T18:32:20Z
dc.date2015-11-26T17:57:42Z
dc.date.accessioned2018-03-29T00:41:16Z
dc.date.available2018-03-29T00:41:16Z
dc.identifierLasers In Medical Science. Springer London Ltd, v. 27, n. 6, n. 1175, n. 1182, 2012.
dc.identifier0268-8921
dc.identifierWOS:000309346600007
dc.identifier10.1007/s10103-011-1030-y
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/80440
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/80440
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1291556
dc.descriptionThe aim of this study was to evaluate the influence of the LED curing unit and selective enamel etching on dentin microtensile bond strength (mu TBS) for self-etch adhesives in class I composite restorations. On 96 human molars, box-shaped class I cavities were made maintaining enamel margins. Self-etch adhesives (Clearfil SE - CSE and Clearfil S-3 - S3) were used to bond a microhybrid composite. Before adhesive application, half of the teeth were enamel acid-etched and the other half was not. Adhesives and composites were cured with the following light curing units (LCUs): one polywave (UltraLume 5 - UL) and two single-peak (FlashLite 1401 - FL and Radii Cal - RD) LEDs. The specimens were then submitted to thermomechanical aging and longitudinally sectioned to obtain bonded sticks (0.9 mm(2)) to be tested in tension at 0.5 mm/min. The failure mode was then recorded. The mu TBS data were submitted to a three-way ANOVA and Tukey's (alpha = 0.05). For S3, the selective enamel-etching provided lower mu TBS values (20.7 +/- 2.7) compared to the non-etched specimens (26.7 +/- 2.2). UL yielded higher mu TBS values (24.1 +/- 3.2) in comparison to the photoactivation approach with FL (18.8 +/- 3.9) and RD (19.9 +/- 1.8) for CSE. The two-step CSE was not influenced by the enamel etching (p a parts per thousand yenaEuro parts per thousand 0.05). Enamel acid etching in class I composite restorations affects the dentin mu TBS of the one-step self-etch adhesive Clearfil S-3, with no alterations for Clearfil SE bond strength. The polywave LED promoted better bond strength for the two-step adhesive compared to the single-peak ones.
dc.description27
dc.description6
dc.description1175
dc.description1182
dc.languageen
dc.publisherSpringer London Ltd
dc.publisherLondon
dc.publisherInglaterra
dc.relationLasers In Medical Science
dc.relationLasers Med. Sci.
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectAcid etching
dc.subjectEnamel
dc.subjectSelf-etch adhesives
dc.subjectLight curing units
dc.subjectBond strength
dc.subjectModulated Photoactivation Methods
dc.subjectContraction Stress
dc.subjectMarginal Adaptation
dc.subjectResin Composites
dc.subjectC-factor
dc.subjectLight
dc.subjectConversion
dc.subjectCamphorquinone
dc.subjectMicroleakage
dc.subjectPerformance
dc.titleInfluence of the LED curing source and selective enamel etching on dentin bond strength of self-etch adhesives in class I composite restorations
dc.typeArtículos de revistas


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