Micro-sized erosions in a nanofilled composite after repeated acidic beverage exposures: consequences of clusters dislodgments

Detalhes bibliográficos
Autor(a) principal: SVIZERO,Nádia da Rocha
Data de Publicação: 2014
Outros Autores: GÓES,Adriana Regina Cruz Grando de, BUENO,Tamires de Luccas, DI HIPÓLITO,Vinicius, WANG,Linda, D'ALPINO,Paulo Henrique Perlatti
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of applied oral science (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572014000500373
Resumo: Objective: To evaluate the hardness (KHN), color stability (DE), and superficial micromorphology of two categories of composites after immersion in either distilled water or grape juice for up to 45 days. MATERIAL AND METHODS: Cylindrical specimens (6 mm diameter x 2 mm thick) were obtained according to the factors: composite [Opallis (FGM) and Filtek Z350XT (3M ESPE)]; immersion solution (distilled water and grape juice); and evaluation time: 24 h and 7, 14, 21, 28, and 45 days. After photoactivation, the specimens were stored at 37ºC for 24 h. KHN (50 g/15 s) and ΔE were then repeatedly assessed according to the immersion solutions. Data were analyzed (three-way ANOVA/Tukey's test). Scanning electron microscopy (SEM) topographic analysis was also performed. RESULTS: In general, KHN of both composites reduced after 24 h, irrespective of the immersion solution and time. A significantly lower KHN was noted for Opallis compared with Filtek Z350XT in all parameters. An increase in ΔE over time was noted for both composites, irrespective of the immersion solution. Significantly higher ΔE was noted for Filtek Z350XT immersed in grape juice compared with Opallis, regardless of the evaluation time. The grape juice caused significantly higher DE compared with water in all periods. SEM analysis showed eroded areas for Filtek Z350XT but not for Opallis. CONCLUSIONS: The compositions and immersion solutions influence the composite hardness and the color stability. In spite of the higher hardness, the nanofilled composite is more susceptible to color change than the microhybrid when immersed in an acidic dyed solution.
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spelling Micro-sized erosions in a nanofilled composite after repeated acidic beverage exposures: consequences of clusters dislodgmentsComposite resinsColorHardnessTime factor Objective: To evaluate the hardness (KHN), color stability (DE), and superficial micromorphology of two categories of composites after immersion in either distilled water or grape juice for up to 45 days. MATERIAL AND METHODS: Cylindrical specimens (6 mm diameter x 2 mm thick) were obtained according to the factors: composite [Opallis (FGM) and Filtek Z350XT (3M ESPE)]; immersion solution (distilled water and grape juice); and evaluation time: 24 h and 7, 14, 21, 28, and 45 days. After photoactivation, the specimens were stored at 37ºC for 24 h. KHN (50 g/15 s) and ΔE were then repeatedly assessed according to the immersion solutions. Data were analyzed (three-way ANOVA/Tukey's test). Scanning electron microscopy (SEM) topographic analysis was also performed. RESULTS: In general, KHN of both composites reduced after 24 h, irrespective of the immersion solution and time. A significantly lower KHN was noted for Opallis compared with Filtek Z350XT in all parameters. An increase in ΔE over time was noted for both composites, irrespective of the immersion solution. Significantly higher ΔE was noted for Filtek Z350XT immersed in grape juice compared with Opallis, regardless of the evaluation time. The grape juice caused significantly higher DE compared with water in all periods. SEM analysis showed eroded areas for Filtek Z350XT but not for Opallis. CONCLUSIONS: The compositions and immersion solutions influence the composite hardness and the color stability. In spite of the higher hardness, the nanofilled composite is more susceptible to color change than the microhybrid when immersed in an acidic dyed solution. Faculdade De Odontologia De Bauru - USP2014-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572014000500373Journal of Applied Oral Science v.22 n.5 2014reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/1678-775720130658info:eu-repo/semantics/openAccessSVIZERO,Nádia da RochaGÓES,Adriana Regina Cruz Grando deBUENO,Tamires de LuccasDI HIPÓLITO,ViniciusWANG,LindaD'ALPINO,Paulo Henrique Perlattieng2015-01-07T00:00:00Zoai:scielo:S1678-77572014000500373Revistahttp://www.scielo.br/jaosPUBhttps://old.scielo.br/oai/scielo-oai.php||jaos@usp.br1678-77651678-7757opendoar:2015-01-07T00:00Journal of applied oral science (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Micro-sized erosions in a nanofilled composite after repeated acidic beverage exposures: consequences of clusters dislodgments
title Micro-sized erosions in a nanofilled composite after repeated acidic beverage exposures: consequences of clusters dislodgments
spellingShingle Micro-sized erosions in a nanofilled composite after repeated acidic beverage exposures: consequences of clusters dislodgments
SVIZERO,Nádia da Rocha
Composite resins
Color
Hardness
Time factor
title_short Micro-sized erosions in a nanofilled composite after repeated acidic beverage exposures: consequences of clusters dislodgments
title_full Micro-sized erosions in a nanofilled composite after repeated acidic beverage exposures: consequences of clusters dislodgments
title_fullStr Micro-sized erosions in a nanofilled composite after repeated acidic beverage exposures: consequences of clusters dislodgments
title_full_unstemmed Micro-sized erosions in a nanofilled composite after repeated acidic beverage exposures: consequences of clusters dislodgments
title_sort Micro-sized erosions in a nanofilled composite after repeated acidic beverage exposures: consequences of clusters dislodgments
author SVIZERO,Nádia da Rocha
author_facet SVIZERO,Nádia da Rocha
GÓES,Adriana Regina Cruz Grando de
BUENO,Tamires de Luccas
DI HIPÓLITO,Vinicius
WANG,Linda
D'ALPINO,Paulo Henrique Perlatti
author_role author
author2 GÓES,Adriana Regina Cruz Grando de
BUENO,Tamires de Luccas
DI HIPÓLITO,Vinicius
WANG,Linda
D'ALPINO,Paulo Henrique Perlatti
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv SVIZERO,Nádia da Rocha
GÓES,Adriana Regina Cruz Grando de
BUENO,Tamires de Luccas
DI HIPÓLITO,Vinicius
WANG,Linda
D'ALPINO,Paulo Henrique Perlatti
dc.subject.por.fl_str_mv Composite resins
Color
Hardness
Time factor
topic Composite resins
Color
Hardness
Time factor
description Objective: To evaluate the hardness (KHN), color stability (DE), and superficial micromorphology of two categories of composites after immersion in either distilled water or grape juice for up to 45 days. MATERIAL AND METHODS: Cylindrical specimens (6 mm diameter x 2 mm thick) were obtained according to the factors: composite [Opallis (FGM) and Filtek Z350XT (3M ESPE)]; immersion solution (distilled water and grape juice); and evaluation time: 24 h and 7, 14, 21, 28, and 45 days. After photoactivation, the specimens were stored at 37ºC for 24 h. KHN (50 g/15 s) and ΔE were then repeatedly assessed according to the immersion solutions. Data were analyzed (three-way ANOVA/Tukey's test). Scanning electron microscopy (SEM) topographic analysis was also performed. RESULTS: In general, KHN of both composites reduced after 24 h, irrespective of the immersion solution and time. A significantly lower KHN was noted for Opallis compared with Filtek Z350XT in all parameters. An increase in ΔE over time was noted for both composites, irrespective of the immersion solution. Significantly higher ΔE was noted for Filtek Z350XT immersed in grape juice compared with Opallis, regardless of the evaluation time. The grape juice caused significantly higher DE compared with water in all periods. SEM analysis showed eroded areas for Filtek Z350XT but not for Opallis. CONCLUSIONS: The compositions and immersion solutions influence the composite hardness and the color stability. In spite of the higher hardness, the nanofilled composite is more susceptible to color change than the microhybrid when immersed in an acidic dyed solution.
publishDate 2014
dc.date.none.fl_str_mv 2014-10-01
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=S1678-77572014000500373
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572014000500373
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1678-775720130658
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 Faculdade De Odontologia De Bauru - USP
publisher.none.fl_str_mv Faculdade De Odontologia De Bauru - USP
dc.source.none.fl_str_mv Journal of Applied Oral Science v.22 n.5 2014
reponame:Journal of applied oral science (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Journal of applied oral science (Online)
collection Journal of applied oral science (Online)
repository.name.fl_str_mv Journal of applied oral science (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ||jaos@usp.br
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