Effect of therapeutic dose X rays on mechanical and chemical properties of esthetic dental materials

dc.creatorCRUZ, Adriana Dibo da
dc.creatorSINHORETI, Mário Alexandre Coelho
dc.creatorAMBROSANO, Gláucia Maria
dc.creatorRASTELLI, Alessandra Nara de Souza
dc.creatorBAGNATO, Vanderlei Salvador
dc.creatorBÓSCOLO, Frab Norberto
dc.date2008
dc.date2013-07-26T17:56:17Z
dc.date2016-06-30T20:32:58Z
dc.date2013-07-26T17:56:17Z
dc.date2016-06-30T20:32:58Z
dc.date.accessioned2018-03-29T01:53:30Z
dc.date.available2018-03-29T01:53:30Z
dc.identifierMaterials Research, v.11, n.3, p.313-318, 2008
dc.identifier1516-1439
dc.identifier10.1590/S1516-14392008000300014
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392008000300014
dc.identifierhttp://www.scielo.br/pdf/mr/v11n3/14.pdf
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/147
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/147
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1308418
dc.descriptionThe aim of this study was to investigate the influence of therapeutic dose X rays on the microhardness (MH) and degree of conversion (DC) of two different esthetic restorative dental materials. The materials were photo-activated with a LED light-curing unit using three cure-times: 5, 20 and 40 seconds. The photo-activation was carried out in two distinct periods: before and after irradiation with doses of 5, 35 and 70 Gy, from a 6 MV X rays beam. In accordance with the methodology used, it was conclude that a therapeutic dose does not have a detrimental effect on the photoinitiator molecules, because the photo-activation occurred after they were irradiated. When the irradiation was applied before photo-activation, the materials showed MH improvement, but when photo-activation was performed after irradiation, there was less improvement. However, there was no correlation between MH and DC. Thus, a therapeutic dose applied to cured material can promote linking and breaking of chain bonds in a non-linear way.
dc.description11
dc.description3
dc.description313
dc.description318
dc.descriptionFUNCAMP
dc.languageeng
dc.publisherABM, ABC, ABPol
dc.publisherBrasil
dc.relationMaterials Research
dc.rightsaberto
dc.rightsCopyright ABM, ABC, ABPol
dc.sourceSciELO
dc.subjectIonizing radiation
dc.subjectRadiotherapy
dc.subjectSpectroscopy
dc.subjectFourier transform infrared
dc.subjectDental materials
dc.titleEffect of therapeutic dose X rays on mechanical and chemical properties of esthetic dental materials
dc.typeArtículos de revistas
dc.typeArtículos de revistas
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución