Water sorption of CH3- and CF3-Bis-GMA based resins with additives

dc.creatorPrakki, Anuradha
dc.creatorCilli, Renato
dc.creatorVieira, Ian Matos
dc.creatorDudumas, Kristina
dc.creatorPereira, Jose Carlos
dc.date2012
dc.date2013-09-19T18:06:41Z
dc.date2016-06-30T20:30:55Z
dc.date2013-09-19T18:06:41Z
dc.date2016-06-30T20:30:55Z
dc.date.accessioned2018-03-29T01:53:26Z
dc.date.available2018-03-29T01:53:26Z
dc.identifierJournal of Applied Oral Science. Univ Sao Paulo Fac Odontologia Bauru, v.20, n.4, p.472-477, 2012
dc.identifier1678-7757
dc.identifierWOS:000309419000014
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/2356
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/2356
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1308398
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionObjectives: To evaluate the effect of additives on the water sorption characteristics of Bis-GMA based copolymers and composites containing TEGDMA, CH(3)Bis-GMA or CF(3)Bis-GMA. Material and methods: Fifteen experimental copolymers and corresponding composites were prepared combining Bis-GMA and TEGDMA, CH(3)Bis-GMA or CF(3)Bis-GMA, with aldehyde or diketone (24 and 32 mol%) totaling 30 groups. For composites, barium aluminosilicate glass and pyrogenic silica was added to comonomer mixtures. Photopolymerization was effected by 0.2 wt% each of camphorquinone and N,N-dimethyl-p-toluidine. Specimen densities in dry and water saturated conditions were obtained by Archimedes' method. Water sorption and desorption were evaluated in a desorption-sorption-desorption cycle. Water uptake (%WU), water desorption (%WD), equilibrium solubility (ES; mu g/mm(3)), swelling (f) and volume increase (%V) were calculated using appropriate equations. Results: All resins with additives had increased %WU and ES. TEGDMA-containing systems presented higher %WU, %WD, ES, f and %V values, followed by resins based on CH(3)Bis-GMA and CF(3)Bis-GMA. Conclusions: Aldehyde and diketone led to increases in the water sorption characteristics of experimental resins.
dc.description20
dc.description4
dc.description472
dc.description477
dc.descriptionConnaught Start-up award
dc.descriptionFaculty of Dentistry, University of Toronto, Canada
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageeng
dc.publisherUniv Sao Paulo Fac Odontologia Bauru
dc.publisherBauru
dc.publisherBrazil
dc.relationJournal of Applied Oral Science
dc.rightsfechado
dc.sourceWOS
dc.subjectWater storage
dc.subjectSolubility
dc.subjectBis-GMA polymer
dc.subjectComposite resins
dc.subjectPolymerization
dc.subjectREMAINING DOUBLE-BONDS
dc.subjectMECHANICAL-PROPERTIES
dc.subjectBIS-GMA
dc.subjectDENTAL COMPOSITES
dc.subjectNETWORKS
dc.subjectPOLYMERIZATION
dc.subjectCOPOLYMERS
dc.subjectQUANTITY
dc.subjectDIACETYL
dc.titleWater sorption of CH3- and CF3-Bis-GMA based resins with additives
dc.typeArtículos de revistas


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