Analysis of the interfacial micromorphology and bond strength of adhesive systems to Er:YAG laser-irradiated dentin

dc.creatorde Oliveira, MT
dc.creatorReis, AF
dc.creatorArrais, CAG
dc.creatorCavalcanti, AN
dc.creatorAranha, ACC
dc.creatorEduardo, CD
dc.creatorGiannini, M
dc.date2013
dc.dateJUL
dc.date2014-07-30T13:49:03Z
dc.date2015-11-26T16:11:15Z
dc.date2014-07-30T13:49:03Z
dc.date2015-11-26T16:11:15Z
dc.date.accessioned2018-03-28T22:59:44Z
dc.date.available2018-03-28T22:59:44Z
dc.identifierLasers In Medical Science. Springer London Ltd, v. 28, n. 4, n. 1069, n. 1076, 2013.
dc.identifier0268-8921
dc.identifierWOS:000321260900003
dc.identifier10.1007/s10103-012-1157-5
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/54635
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/54635
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1267041
dc.descriptionThis study evaluated the effects of different parameters of dentin irradiation with erbium-doped yttrium aluminum garnet (Er:YAG) laser on bond strength to dentin and analyzed the ultramorphological characteristics of resin-laser-irradiated dentin interfaces using a transmission electron microscope (TEM). Dentin surfaces were abraded with SiC paper (600 grit) or Er:YAG laser-irradiated (120/4, 140/6, 180/4, or 200/6 mJ/Hz). Three adhesive systems were tested: Single Bond Plus (3M ESPE), Clearfil Protect Bond (Kuraray Med.), and Clearfil Tri-S Bond (Kuraray Med.). Treatments were performed over flat dentin surfaces of human third molars. Specimens were stored in distilled water for 1 week or 6 months and prepared for a microtensile bond strength test and interfacial ultrastructure for analysis. Microtensile bond strength data (n - 5) were analyzed with three-way analysis of variance. Irradiation with Er:YAG laser did not reduce the bond strength values for self-etching adhesives even after 6 months of water storage. The hybrid layer formation was observed only when the adhesives were applied to non-irradiated dentin (control group). Nanoleakage occurred in all resin-dentin interfaces using Single Bond Plus for both periods. Nanoleakage pattern and bond strength of self-etching adhesives to dentin were less affected by Er:YAG laser irradiation and by the 6-month storage in water than was those of the etch-and-rinse adhesive. TEM analysis revealed no hybridization when dentin was laser-irradiated. Clinical significance: Minimally invasive caries removal has been proposed. Nevertheless, bonding mechanisms to lased dentin are not entirely described. Knowing the interaction between the treated dentin and bonding agents and its behavior over time is of utmost importance for new technologies. Regarding that, two-bottle self-etching adhesive system provided a more consistent evidence of its better behavior when bonding to lased substrate.
dc.description28
dc.description4
dc.description1069
dc.description1076
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.subjectBonding agents
dc.subjectBonding interface morphology
dc.subjectDentin
dc.subjectTransmission electron microscopy
dc.subjectEr:YAG laser
dc.subjectEr-yag-laser
dc.subjectSingle-step Adhesives
dc.subjectHard Substances
dc.subjectHydroxyapatite
dc.subjectNanoleakage
dc.subjectCavities
dc.subjectEnamel
dc.subjectBur
dc.titleAnalysis of the interfacial micromorphology and bond strength of adhesive systems to Er:YAG laser-irradiated dentin
dc.typeArtículos de revistas


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