Brasil | Artículos de revistas

Radiant Exposure Effects On Physical Properties Of Methacrylate - And Silorane-composites

dc.creatorCatelan A.
dc.creatorKawano Y.
dc.creatordos Santos P.H.
dc.creatorAmbrosano G.M.B.
dc.creatorBedran-Russo A.K.
dc.creatorAguiar F.H.B.
dc.date2014
dc.date2015-06-25T17:53:50Z
dc.date2015-11-26T14:27:05Z
dc.date2015-06-25T17:53:50Z
dc.date2015-11-26T14:27:05Z
dc.date.accessioned2018-03-28T21:30:10Z
dc.date.available2018-03-28T21:30:10Z
dc.identifier
dc.identifierBrazilian Journal Of Oral Sciences. Piracicaba Dental School - Unicamp, v. 13, n. 3, p. 168 - 174, 2014.
dc.identifier16773217
dc.identifier
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84908205873&partnerID=40&md5=afcc10862b1d27393fab4a79429835ce
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/86540
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/86540
dc.identifier2-s2.0-84908205873
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1246241
dc.descriptionAim: To evaluate the effect of different radiant exposures on the degree of conversion (DC), Knoop hardness number (KHN), plasticization (P), water sorption (WS), and solubility (S) of different monomer resin-based composites. Methods: Circular specimens (5 x 2 mm) were manufactured from methacrylate and silorane composite resins, and light-cured at 19.8, 27.8, 39.6, and 55.6 J/cm2, using second-generation LED at 1,390 mW/cm2. After 24 h, DC was obtained using a FT-Raman spectrometer equipped with a Nd:YAG laser, KHN was measured with 50-g load for 15 s, and P was evaluated on the top and bottom surfaces by the percentage of hardness reduction after 24 h immersed in absolute alcohol. WS and S were determined according to ISO 4049. Data were subjected to statistical analysis (α=0.05). Results: Methacrylate material presented higher DC, KHN, P, and WS than silorane (p<0.05). There was no difference in the S values (p>0.05). The increased radiant exposures improved only the KHN (p<0.05). In general, top surfaces showed higher DC and KHN than bottom, for both materials (p<0.05). The increase of the radiant exposure did not improve most physical properties of the composites and were monomerbase dependent. Conclusions: Chemical composition of the composite resins resulted in different physical properties behavior and could affect the clinical longevity of dental restorations, but overall these properties were not influenced by the different radiant exposures evaluated in the study.
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dc.description3
dc.description168
dc.description174
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dc.languageen
dc.publisherPiracicaba Dental School - UNICAMP
dc.relationBrazilian Journal of Oral Sciences
dc.rightsaberto
dc.sourceScopus
dc.titleRadiant Exposure Effects On Physical Properties Of Methacrylate - And Silorane-composites
dc.typeArtículos de revistas


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