Hydrolytic degradation of composite resins: effects on the microhardness

Detalhes bibliográficos
Autor(a) principal: Martos,Josué
Data de Publicação: 2003
Outros Autores: Osinaga,Prudêncio Willy Rodo, Oliveira,Elisabeth de, Castro,Luis Antônio Suita de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392003000400029
Resumo: The purpose of this investigation was to evaluate the microhardness of two laboratory-processed composites (Artglass; belleGlass) and two direct placement composites (Filtek Z250; Alert), after aging in distilled water. Twenty cylinders (8 mm diameter; 2 mm height) per tested material were prepared and stored in 10 ml of distilled water. Five Knoop hardness measurements were made on the surface of the specimens with a Miniload Hardness Tester under a load of 50 g for 30 s at 10 min, 24 h, 30 and 90 days. Statistical analysis was perfomed using two-way ANOVA, followed by a SNK multiple comparison test (p < 0.05). The analysis showed statistically significant difference among hardness means recorded at the different aging time and the tested materials. It may be concluded that all materials presented hydrolytic degradation due to aging in aqueous environment.
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spelling Hydrolytic degradation of composite resins: effects on the microhardnesscomposite resinhydrolytic degradationmicrohardnessThe purpose of this investigation was to evaluate the microhardness of two laboratory-processed composites (Artglass; belleGlass) and two direct placement composites (Filtek Z250; Alert), after aging in distilled water. Twenty cylinders (8 mm diameter; 2 mm height) per tested material were prepared and stored in 10 ml of distilled water. Five Knoop hardness measurements were made on the surface of the specimens with a Miniload Hardness Tester under a load of 50 g for 30 s at 10 min, 24 h, 30 and 90 days. Statistical analysis was perfomed using two-way ANOVA, followed by a SNK multiple comparison test (p < 0.05). The analysis showed statistically significant difference among hardness means recorded at the different aging time and the tested materials. It may be concluded that all materials presented hydrolytic degradation due to aging in aqueous environment.ABM, ABC, ABPol2003-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392003000400029Materials Research v.6 n.4 2003reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392003000400029info:eu-repo/semantics/openAccessMartos,JosuéOsinaga,Prudêncio Willy RodoOliveira,Elisabeth deCastro,Luis Antônio Suita deeng2004-01-19T00:00:00Zoai:scielo:S1516-14392003000400029Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2004-01-19T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Hydrolytic degradation of composite resins: effects on the microhardness
title Hydrolytic degradation of composite resins: effects on the microhardness
spellingShingle Hydrolytic degradation of composite resins: effects on the microhardness
Martos,Josué
composite resin
hydrolytic degradation
microhardness
title_short Hydrolytic degradation of composite resins: effects on the microhardness
title_full Hydrolytic degradation of composite resins: effects on the microhardness
title_fullStr Hydrolytic degradation of composite resins: effects on the microhardness
title_full_unstemmed Hydrolytic degradation of composite resins: effects on the microhardness
title_sort Hydrolytic degradation of composite resins: effects on the microhardness
author Martos,Josué
author_facet Martos,Josué
Osinaga,Prudêncio Willy Rodo
Oliveira,Elisabeth de
Castro,Luis Antônio Suita de
author_role author
author2 Osinaga,Prudêncio Willy Rodo
Oliveira,Elisabeth de
Castro,Luis Antônio Suita de
author2_role author
author
author
dc.contributor.author.fl_str_mv Martos,Josué
Osinaga,Prudêncio Willy Rodo
Oliveira,Elisabeth de
Castro,Luis Antônio Suita de
dc.subject.por.fl_str_mv composite resin
hydrolytic degradation
microhardness
topic composite resin
hydrolytic degradation
microhardness
description The purpose of this investigation was to evaluate the microhardness of two laboratory-processed composites (Artglass; belleGlass) and two direct placement composites (Filtek Z250; Alert), after aging in distilled water. Twenty cylinders (8 mm diameter; 2 mm height) per tested material were prepared and stored in 10 ml of distilled water. Five Knoop hardness measurements were made on the surface of the specimens with a Miniload Hardness Tester under a load of 50 g for 30 s at 10 min, 24 h, 30 and 90 days. Statistical analysis was perfomed using two-way ANOVA, followed by a SNK multiple comparison test (p < 0.05). The analysis showed statistically significant difference among hardness means recorded at the different aging time and the tested materials. It may be concluded that all materials presented hydrolytic degradation due to aging in aqueous environment.
publishDate 2003
dc.date.none.fl_str_mv 2003-12-01
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=S1516-14392003000400029
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392003000400029
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392003000400029
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.6 n.4 2003
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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