Color stability of modern composites subjected to different periods of accelerated artificial aging

Detalhes bibliográficos
Autor(a) principal: Drubi-Filho,Brahim
Data de Publicação: 2012
Outros Autores: Garcia,Lucas da Fonseca Roberti, Cruvinel,Diogo Rodrigues, Sousa,Ana Beatriz Silva, Pires-de-Souza,Fernanda de Carvalho Panzeri
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Dental Journal
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402012000500018
Resumo: The aim of this study was to evaluate the color stability of composites subjected to different periods of accelerated artificial aging (AAA). A polytetrafluorethylene matrix (10 x 2 mm) was used to fabricate 24 test specimens of three different composites (n=8): Tetric Ceram (Ivoclar/Vivadent); Filtek P90 and Z250 (3M ESPE), shade A3. After light activation for 20 s (FlashLite 1401), polishing and initial color readout (Spectrophotometer PCB 687; BYK Gardner), the test specimens were subjected to AAA (C-UV; Comexim), in 8-h cycles: 4 h exposure to UV-B rays at 50°C and 4 h condensation at 50°C. At the end of each cycle, color readouts were taken and the test ended when the mean value of ΔE attained a level ≥3.30. Tetric Ceram presented alteration in ΔE equal to 3.33 in the first aging cycle. For Filtek P90 and Z250, two (ΔE=3.60) and four (ΔE=3.42) AAA cycles were necessary. After each cycle, there was a reduction of luminosity in all the samples (ΔL). It was concluded that a short period of AAA was sufficient to promote clinically unacceptable color alteration in composites, and that this alteration was material-dependent.
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spelling Color stability of modern composites subjected to different periods of accelerated artificial agingcompositescolor stabilityagingsiloraneThe aim of this study was to evaluate the color stability of composites subjected to different periods of accelerated artificial aging (AAA). A polytetrafluorethylene matrix (10 x 2 mm) was used to fabricate 24 test specimens of three different composites (n=8): Tetric Ceram (Ivoclar/Vivadent); Filtek P90 and Z250 (3M ESPE), shade A3. After light activation for 20 s (FlashLite 1401), polishing and initial color readout (Spectrophotometer PCB 687; BYK Gardner), the test specimens were subjected to AAA (C-UV; Comexim), in 8-h cycles: 4 h exposure to UV-B rays at 50°C and 4 h condensation at 50°C. At the end of each cycle, color readouts were taken and the test ended when the mean value of ΔE attained a level ≥3.30. Tetric Ceram presented alteration in ΔE equal to 3.33 in the first aging cycle. For Filtek P90 and Z250, two (ΔE=3.60) and four (ΔE=3.42) AAA cycles were necessary. After each cycle, there was a reduction of luminosity in all the samples (ΔL). It was concluded that a short period of AAA was sufficient to promote clinically unacceptable color alteration in composites, and that this alteration was material-dependent.Fundação Odontológica de Ribeirão Preto2012-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402012000500018Brazilian Dental Journal v.23 n.5 2012reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/S0103-64402012000500018info:eu-repo/semantics/openAccessDrubi-Filho,BrahimGarcia,Lucas da Fonseca RobertiCruvinel,Diogo RodriguesSousa,Ana Beatriz SilvaPires-de-Souza,Fernanda de Carvalho Panzerieng2013-01-08T00:00:00Zoai:scielo:S0103-64402012000500018Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2013-01-08T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false
dc.title.none.fl_str_mv Color stability of modern composites subjected to different periods of accelerated artificial aging
title Color stability of modern composites subjected to different periods of accelerated artificial aging
spellingShingle Color stability of modern composites subjected to different periods of accelerated artificial aging
Drubi-Filho,Brahim
composites
color stability
aging
silorane
title_short Color stability of modern composites subjected to different periods of accelerated artificial aging
title_full Color stability of modern composites subjected to different periods of accelerated artificial aging
title_fullStr Color stability of modern composites subjected to different periods of accelerated artificial aging
title_full_unstemmed Color stability of modern composites subjected to different periods of accelerated artificial aging
title_sort Color stability of modern composites subjected to different periods of accelerated artificial aging
author Drubi-Filho,Brahim
author_facet Drubi-Filho,Brahim
Garcia,Lucas da Fonseca Roberti
Cruvinel,Diogo Rodrigues
Sousa,Ana Beatriz Silva
Pires-de-Souza,Fernanda de Carvalho Panzeri
author_role author
author2 Garcia,Lucas da Fonseca Roberti
Cruvinel,Diogo Rodrigues
Sousa,Ana Beatriz Silva
Pires-de-Souza,Fernanda de Carvalho Panzeri
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Drubi-Filho,Brahim
Garcia,Lucas da Fonseca Roberti
Cruvinel,Diogo Rodrigues
Sousa,Ana Beatriz Silva
Pires-de-Souza,Fernanda de Carvalho Panzeri
dc.subject.por.fl_str_mv composites
color stability
aging
silorane
topic composites
color stability
aging
silorane
description The aim of this study was to evaluate the color stability of composites subjected to different periods of accelerated artificial aging (AAA). A polytetrafluorethylene matrix (10 x 2 mm) was used to fabricate 24 test specimens of three different composites (n=8): Tetric Ceram (Ivoclar/Vivadent); Filtek P90 and Z250 (3M ESPE), shade A3. After light activation for 20 s (FlashLite 1401), polishing and initial color readout (Spectrophotometer PCB 687; BYK Gardner), the test specimens were subjected to AAA (C-UV; Comexim), in 8-h cycles: 4 h exposure to UV-B rays at 50°C and 4 h condensation at 50°C. At the end of each cycle, color readouts were taken and the test ended when the mean value of ΔE attained a level ≥3.30. Tetric Ceram presented alteration in ΔE equal to 3.33 in the first aging cycle. For Filtek P90 and Z250, two (ΔE=3.60) and four (ΔE=3.42) AAA cycles were necessary. After each cycle, there was a reduction of luminosity in all the samples (ΔL). It was concluded that a short period of AAA was sufficient to promote clinically unacceptable color alteration in composites, and that this alteration was material-dependent.
publishDate 2012
dc.date.none.fl_str_mv 2012-10-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402012000500018
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402012000500018
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-64402012000500018
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Fundação Odontológica de Ribeirão Preto
publisher.none.fl_str_mv Fundação Odontológica de Ribeirão Preto
dc.source.none.fl_str_mv Brazilian Dental Journal v.23 n.5 2012
reponame:Brazilian Dental Journal
instname:Fundação Odontológica de Ribeirão Preto (FUNORP)
instacron:FUNORP
instname_str Fundação Odontológica de Ribeirão Preto (FUNORP)
instacron_str FUNORP
institution FUNORP
reponame_str Brazilian Dental Journal
collection Brazilian Dental Journal
repository.name.fl_str_mv Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)
repository.mail.fl_str_mv bdj@forp.usp.br||sergio@fosjc.unesp.br
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