Color stability of resin cements exposed to aging
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.2341/18-064-L http://hdl.handle.net/11449/197925 |
Resumo: | The aim of this study was to evaluate the color stability of light-cured and dual-cured resin cements after artificial accelerated aging. Ten specimens (6-mm diameter and 2-mm thickness) for each of five resin cements were prepared: GC (dual-cured cement, GCem), Vb (light-cured cement, Variolink II only the base), Vbc (dual-cured cement, Variolink II base with catalyst), VV (light-cured cement, Variolink Veneer), and FR (flowable resin composite, light cured). The samples were polished and stored in an accelerated artificial aging machine for 308 hours (160 klx), with cycles of 120 minutes under light and 60 minutes in the dark. All aging was carried out in distilled water at 378C and light irradiation at 765 W/m2. The samples were evaluated in a spectrophotometer before and after aging, and results were calculated according to CIEDE2000. The data were statistically analyzed (one-way analysis of variance and Tukey test, 95% confidence). The results of DE00 were statistically significant for the type of cement (p,0.001), with differences among tested groups. Variolink II (base only and base + catalyst) and the flowable resin were the cements with the lowest color variations after the artificial accelerated aging. Considering the values DE00 of acceptability and perceptibility, none of the tested cements showed acceptable values. |
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Repositório Institucional da UNESP |
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Color stability of resin cements exposed to agingThe aim of this study was to evaluate the color stability of light-cured and dual-cured resin cements after artificial accelerated aging. Ten specimens (6-mm diameter and 2-mm thickness) for each of five resin cements were prepared: GC (dual-cured cement, GCem), Vb (light-cured cement, Variolink II only the base), Vbc (dual-cured cement, Variolink II base with catalyst), VV (light-cured cement, Variolink Veneer), and FR (flowable resin composite, light cured). The samples were polished and stored in an accelerated artificial aging machine for 308 hours (160 klx), with cycles of 120 minutes under light and 60 minutes in the dark. All aging was carried out in distilled water at 378C and light irradiation at 765 W/m2. The samples were evaluated in a spectrophotometer before and after aging, and results were calculated according to CIEDE2000. The data were statistically analyzed (one-way analysis of variance and Tukey test, 95% confidence). The results of DE00 were statistically significant for the type of cement (p,0.001), with differences among tested groups. Variolink II (base only and base + catalyst) and the flowable resin were the cements with the lowest color variations after the artificial accelerated aging. Considering the values DE00 of acceptability and perceptibility, none of the tested cements showed acceptable values.Restorative Dentistry Program (Prosthodontics) Department of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (UNESP)Department of Restorative Dentistry Institute of Science and Technology São Paulo State University (UNESP)Department of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (UNESP)Restorative Dentistry Program (Prosthodontics) Department of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (UNESP)Department of Restorative Dentistry Institute of Science and Technology São Paulo State University (UNESP)Department of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (UNESP)Universidade Estadual Paulista (Unesp)Ramos, N. C. [UNESP]Luz, J. N. [UNESP]Valera, M. C. [UNESP]Melo, R. M. [UNESP]Saavedra, G. S.F.A. [UNESP]Bresciani, E. [UNESP]2020-12-12T00:54:17Z2020-12-12T00:54:17Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article609-614http://dx.doi.org/10.2341/18-064-LOperative Dentistry, v. 44, n. 6, p. 609-614, 2019.0361-7734http://hdl.handle.net/11449/19792510.2341/18-064-L2-s2.0-85068866561Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengOperative Dentistryinfo:eu-repo/semantics/openAccess2021-10-23T07:07:38Zoai:repositorio.unesp.br:11449/197925Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T07:07:38Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Color stability of resin cements exposed to aging |
title |
Color stability of resin cements exposed to aging |
spellingShingle |
Color stability of resin cements exposed to aging Ramos, N. C. [UNESP] |
title_short |
Color stability of resin cements exposed to aging |
title_full |
Color stability of resin cements exposed to aging |
title_fullStr |
Color stability of resin cements exposed to aging |
title_full_unstemmed |
Color stability of resin cements exposed to aging |
title_sort |
Color stability of resin cements exposed to aging |
author |
Ramos, N. C. [UNESP] |
author_facet |
Ramos, N. C. [UNESP] Luz, J. N. [UNESP] Valera, M. C. [UNESP] Melo, R. M. [UNESP] Saavedra, G. S.F.A. [UNESP] Bresciani, E. [UNESP] |
author_role |
author |
author2 |
Luz, J. N. [UNESP] Valera, M. C. [UNESP] Melo, R. M. [UNESP] Saavedra, G. S.F.A. [UNESP] Bresciani, E. [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Ramos, N. C. [UNESP] Luz, J. N. [UNESP] Valera, M. C. [UNESP] Melo, R. M. [UNESP] Saavedra, G. S.F.A. [UNESP] Bresciani, E. [UNESP] |
description |
The aim of this study was to evaluate the color stability of light-cured and dual-cured resin cements after artificial accelerated aging. Ten specimens (6-mm diameter and 2-mm thickness) for each of five resin cements were prepared: GC (dual-cured cement, GCem), Vb (light-cured cement, Variolink II only the base), Vbc (dual-cured cement, Variolink II base with catalyst), VV (light-cured cement, Variolink Veneer), and FR (flowable resin composite, light cured). The samples were polished and stored in an accelerated artificial aging machine for 308 hours (160 klx), with cycles of 120 minutes under light and 60 minutes in the dark. All aging was carried out in distilled water at 378C and light irradiation at 765 W/m2. The samples were evaluated in a spectrophotometer before and after aging, and results were calculated according to CIEDE2000. The data were statistically analyzed (one-way analysis of variance and Tukey test, 95% confidence). The results of DE00 were statistically significant for the type of cement (p,0.001), with differences among tested groups. Variolink II (base only and base + catalyst) and the flowable resin were the cements with the lowest color variations after the artificial accelerated aging. Considering the values DE00 of acceptability and perceptibility, none of the tested cements showed acceptable values. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 2020-12-12T00:54:17Z 2020-12-12T00:54:17Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.2341/18-064-L Operative Dentistry, v. 44, n. 6, p. 609-614, 2019. 0361-7734 http://hdl.handle.net/11449/197925 10.2341/18-064-L 2-s2.0-85068866561 |
url |
http://dx.doi.org/10.2341/18-064-L http://hdl.handle.net/11449/197925 |
identifier_str_mv |
Operative Dentistry, v. 44, n. 6, p. 609-614, 2019. 0361-7734 10.2341/18-064-L 2-s2.0-85068866561 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Operative Dentistry |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
609-614 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803047235196289024 |