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dc.contributor.authorMessias, A. M.-
dc.contributor.authorGalvão, M. R.-
dc.contributor.authorBoaventura, J. M. C.-
dc.contributor.authorJacomassi, D. P.-
dc.contributor.authorBernardi, M. I. B.-
dc.contributor.authorBagnato, Vanderlei Salvador-
dc.contributor.authorRastelli, A. N. S.-
dc.contributor.authorAndrade, Marcelo Ferrarezi-
dc.identifier.citationMESSIAS, A. M. et al. Degree of conversion of different composite resins photo-activated with light-emitting diode and argon ion laser. Laser Physics, v. 25, n. 2, p. 025601, 2015.pt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectcomposite resinspt_BR
dc.subjectargon ion laserpt_BR
dc.titleDegree of conversion of different composite resins photo-activated with light-emitting diode and argon ion laserpt_BR
dc.description.resumoThis study evaluated the degree of conversion (DC%) of one experimental and different brands of composite resins light-cured by two light sources (one LED and one argon laser). The percentage of unreacted C = C was determined from the ratio of absorbance intensities of aliphatic C = C (peak at 1637 cm−1) against internal standards before and after curing: aromatic C–C (peak at 1610 cm−1) except for P90, where %C = C bonds was given for C–O–C (883 cm−1) and C–C (1257 cm−1). ANOVA and Tukey’s test revealed no statistically significant difference among Z350 (67.17), Z250 (69.52) and experimental (66.61 ± 2.03) with LED, just among them and Evolu-X (75.51) and P90 (32.05) that showed higher and lower DC%, respectively. For the argon laser, there were no differences among Z250 (70.67), Z350 (69.60), experimental (65.66) and Evolu-X (73, 37), however a significant difference was observed for P90 (36.80), which showed lowest DC%. The light sources showed similar DC%, however the main difference was observed regarding the composite resins. The lowest DC% was observed for the argon laser. P90 showed the lowest DC% for both light-curing sources.pt_BR
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