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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/45433
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dc.creatorMaicon Seboldpt_BR
dc.creatorCarolina Bosso Andrépt_BR
dc.creatorRicardo Marins Carvalhopt_BR
dc.creatorMarcelo Gianninipt_BR
dc.date.accessioned2022-09-24T16:24:34Z-
dc.date.available2022-09-24T16:24:34Z-
dc.date.issued2019-06-
dc.citation.volume94pt_BR
dc.citation.spage238pt_BR
dc.citation.epage248pt_BR
dc.identifier.doi10.1016/j.jmbbm.2019.03.015pt_BR
dc.identifier.issn17516161pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/45433-
dc.description.resumoObjectives: To evaluate the effect of experimental conditioners (10-3 solution - 10-3, 6.8% ferric oxalate - FOX, and 1.4% nitric acid - NI) on dentin elastic modulus, flexural strength, bond strength, failure mode, and adhesive interface morphology of two etch-and-rinse adhesives (XP Bond, Dentsply or One-Step, Bisco) applied on etched dry dentin. Methods: Sound human third molars were used for the microtensile bond strength test (n = 8), performed at 24 h and after one year of water storage. Failure modes were evaluated by scanning electron microscopy. Dentin bonding interface was analyzed by confocal laser scanning microscopy (n = 3). Adhesive systems were applied on phosphoric acid-etched, wet (positive control) and dry (negative control) dentin, and on etched and dry dentin previously treated with 10-3 (15s), FOX (60s), or NI (15s). Bovine dentin bars (n = 15) were immersed into the conditioning solutions and subjected to a three-point bending test. Results: XP Bond + 10-3 or NI resulted in lower bond strength than phosphoric acid. One-Step + 10-3 or NI resulted in bond strengths equivalent to the positive control. Experimental conditioners presented no bond strength reduction after one year, regardless of the bonding agent tested. One-Step resulted in more adhesive failures than XP Bond at 24 h, and mixed failures increased after storage. All experimental conditioners promoted hybridization and resin tags formation, except FOX. Dentin elastic modulus was not affected by the conditioners, whereas flexural strength was significantly reduced by FOX. Conclusions: Adequate and stable dentin bonds were achieved when the bonding agents were applied on 10-3 or NI-treated dentin. None of the experimental conditioners reduced dentin elastic modulus, but dentin flexural strength was significantly reduced by FOX-conditioningpt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentFAO - DEPARTAMENTO DE ODONTOLOGIA RESTAURADORApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofJournal of the Mechanical Behavior of Biomedical materialspt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectConfocal microscopypt_BR
dc.subjectDental acid etchingpt_BR
dc.subjectDentin mechanical propertiespt_BR
dc.subjectIron compoundspt_BR
dc.subject.otherDentin-bonding agentspt_BR
dc.subject.otherDentin mechanical propertiespt_BR
dc.subject.otherNitric acidpt_BR
dc.subject.otherTensile strength.pt_BR
dc.subject.otherConfocal microscopypt_BR
dc.titleDry-bonding to dentin using alternative conditioners based on iron-containing solutions or nitric acidpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/abs/pii/S1751616118313389?via%3Dihubpt_BR
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