Influence Of Dimethyl Sulfoxide Used As A Solvent On The Physical Properties And Long-term Dentin Bonding Of Hydrophilic Resins

dc.creatorScarabello Stape
dc.creatorThiago Henrique; Tezuergil-Mutluay
dc.creatorArzu; Mutluay
dc.creatorMustafa Murat; Marcondes Martins
dc.creatorLuis Roberto; do Prado
dc.creatorRosana Leal; Gaya Pizi
dc.creatorEliane Cristina; Tjaderhane
dc.creatorLeo
dc.date2016
dc.datedez
dc.date2017-11-13T13:24:26Z
dc.date2017-11-13T13:24:26Z
dc.date.accessioned2018-03-29T05:56:59Z
dc.date.available2018-03-29T05:56:59Z
dc.identifierJournal Of The Mechanical Behavior Of Biomedical Materials. Elsevier Science Bv, v. 64, p. 220 - 228, 2016.
dc.identifier1751-6161
dc.identifier1878-0180
dc.identifierWOS:000383526100021
dc.identifier10.1016/j.jmbbm.2016.07.003
dc.identifierhttp://www.sciencedirect.com/science/article/pii/S1751616116302120?via%3Dihub
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/328302
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1365327
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionTo examine the feasibility of dimethyl sulfoxide (DMSO) incorporation into relatively hydrophilic resins as a new potential method to improve the durability of resin dentin bonds. Methods: Six experimental light-curing BisGMA/HEMA resins solvated in ethanol and DMSO with increasing concentrations of DMSO (0, 0.5, 1, 2, 4 and 10 wt%) were prepared. The degree of conversion (DC) was evaluated by Fourier Transform Infrared Spectroscopy (n=8); water sorption (Wsp) and water solubility (Wso) were gravimetrically assessed (n=10); and flexural strength (FS) and elastic modulus (E) were determined by a three-point bending flexural test (n=10). Flat dentin surfaces on sound third molars (n=10/group) were bonded with resins containing 0, 2, 4 and 10 wt% DMSO used as a two-step etch-and-rinse system. Dentin microtensile bond strength was determined at 24 h and after two-year aging in artificial saliva at 37 degrees C. Results: DMSO significantly affected Wsp (p=0.0006), DC, Wso, FS, and E (p <0.0001). In general, the resins' mechanical/physical properties were not affected by 2% or lower DMSO incorporation. Incorporation of 4% or higher DMSO content significantly increased DC, Wsp and Wso, but 2% or higher DMSO concentrations significantly reduced FS and E. No influence on immediate dentin bond strength occurred up to 4% DMSO incorporation. While 4% or higher DMSO concentrations impaired bond strength over time, the resin containing 2% DMSO presented significant higher dentin bond strength compared to the control resin after two year-aging. Significance: The use of DMSO as a new solvent in adhesive dentistry improves dentin bonding of relatively hydrophilic resins over time. 2% DMSO incorporation in BisGMA/HEMA resins should be sufficient to reduce bond strength loss without compromising polymer mechanical strength and physical properties. (C) 2016 Elsevier Ltd. All rights reserved.
dc.description64
dc.description220
dc.description228
dc.descriptionCAPES
dc.descriptionCNPq
dc.descriptionAcademy of Finland
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageEnglish
dc.publisherElsevier Science BV
dc.publisherAmsterdam
dc.relationJournal of The Mechanical Behavior of Biomedical Materials
dc.rightsfechado
dc.sourceWOS
dc.subjectDentin
dc.subjectBiomechanical Properties
dc.subjectDurability
dc.subjectHybrid Layer
dc.subjectAdhesion
dc.subjectHydrophilicity
dc.titleInfluence Of Dimethyl Sulfoxide Used As A Solvent On The Physical Properties And Long-term Dentin Bonding Of Hydrophilic Resins
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución