Evaluation of the surface hardness of composite resins before and after polishing at different times

Detalhes bibliográficos
Autor(a) principal: Chinelatti,Michelle Alexandra
Data de Publicação: 2006
Outros Autores: Chimello,Daniela Thomazatti, Ramos,Renata Pereira, Palma-Dibb,Regina Guenka
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=S1678-77572006000300008
Resumo: PURPOSE: The aim of this study was to evaluate the surface hardness of six composite resins: Revolution, Natural Flow, Fill Magic Flow, Flow-it! (flowables), Silux Plus (microfilled) and Z100 (minifilled) before and after polishing at different times. MATERIALS AND METHODS: For this purpose, 240 specimens (5mm diameter, 1.4mm high) were prepared. Vickers hardness was determined before and after polishing at different times: immediately, 24h, 7 and 21 days after preparation of the samples. Statistical analysis was performed by ANOVA and Tukey test. RESULTS: There was no difference in the hardness of flowable resins, which had lower hardness than the minifilled resin. The minifilled resin showed the highest surface hardness as compared to the other materials (p<0.01). All materials exhibited higher hardness after polishing, being more evident after 7 days. CONCLUSION: It may be concluded that, regardless of the composite resin, surface hardness was considerably increased when polishing was delayed and performed 1 week after preparation of the samples.
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spelling Evaluation of the surface hardness of composite resins before and after polishing at different timesHardnessComposite resinsPolishingPURPOSE: The aim of this study was to evaluate the surface hardness of six composite resins: Revolution, Natural Flow, Fill Magic Flow, Flow-it! (flowables), Silux Plus (microfilled) and Z100 (minifilled) before and after polishing at different times. MATERIALS AND METHODS: For this purpose, 240 specimens (5mm diameter, 1.4mm high) were prepared. Vickers hardness was determined before and after polishing at different times: immediately, 24h, 7 and 21 days after preparation of the samples. Statistical analysis was performed by ANOVA and Tukey test. RESULTS: There was no difference in the hardness of flowable resins, which had lower hardness than the minifilled resin. The minifilled resin showed the highest surface hardness as compared to the other materials (p<0.01). All materials exhibited higher hardness after polishing, being more evident after 7 days. CONCLUSION: It may be concluded that, regardless of the composite resin, surface hardness was considerably increased when polishing was delayed and performed 1 week after preparation of the samples.Faculdade De Odontologia De Bauru - USP2006-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572006000300008Journal of Applied Oral Science v.14 n.3 2006reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S1678-77572006000300008info:eu-repo/semantics/openAccessChinelatti,Michelle AlexandraChimello,Daniela ThomazattiRamos,Renata PereiraPalma-Dibb,Regina Guenkaeng2006-08-14T00:00:00Zoai:scielo:S1678-77572006000300008Revistahttp://www.scielo.br/jaosPUBhttps://old.scielo.br/oai/scielo-oai.php||jaos@usp.br1678-77651678-7757opendoar:2006-08-14T00:00Journal of applied oral science (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Evaluation of the surface hardness of composite resins before and after polishing at different times
title Evaluation of the surface hardness of composite resins before and after polishing at different times
spellingShingle Evaluation of the surface hardness of composite resins before and after polishing at different times
Chinelatti,Michelle Alexandra
Hardness
Composite resins
Polishing
title_short Evaluation of the surface hardness of composite resins before and after polishing at different times
title_full Evaluation of the surface hardness of composite resins before and after polishing at different times
title_fullStr Evaluation of the surface hardness of composite resins before and after polishing at different times
title_full_unstemmed Evaluation of the surface hardness of composite resins before and after polishing at different times
title_sort Evaluation of the surface hardness of composite resins before and after polishing at different times
author Chinelatti,Michelle Alexandra
author_facet Chinelatti,Michelle Alexandra
Chimello,Daniela Thomazatti
Ramos,Renata Pereira
Palma-Dibb,Regina Guenka
author_role author
author2 Chimello,Daniela Thomazatti
Ramos,Renata Pereira
Palma-Dibb,Regina Guenka
author2_role author
author
author
dc.contributor.author.fl_str_mv Chinelatti,Michelle Alexandra
Chimello,Daniela Thomazatti
Ramos,Renata Pereira
Palma-Dibb,Regina Guenka
dc.subject.por.fl_str_mv Hardness
Composite resins
Polishing
topic Hardness
Composite resins
Polishing
description PURPOSE: The aim of this study was to evaluate the surface hardness of six composite resins: Revolution, Natural Flow, Fill Magic Flow, Flow-it! (flowables), Silux Plus (microfilled) and Z100 (minifilled) before and after polishing at different times. MATERIALS AND METHODS: For this purpose, 240 specimens (5mm diameter, 1.4mm high) were prepared. Vickers hardness was determined before and after polishing at different times: immediately, 24h, 7 and 21 days after preparation of the samples. Statistical analysis was performed by ANOVA and Tukey test. RESULTS: There was no difference in the hardness of flowable resins, which had lower hardness than the minifilled resin. The minifilled resin showed the highest surface hardness as compared to the other materials (p<0.01). All materials exhibited higher hardness after polishing, being more evident after 7 days. CONCLUSION: It may be concluded that, regardless of the composite resin, surface hardness was considerably increased when polishing was delayed and performed 1 week after preparation of the samples.
publishDate 2006
dc.date.none.fl_str_mv 2006-06-01
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=S1678-77572006000300008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572006000300008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1678-77572006000300008
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.14 n.3 2006
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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