Effect of light-activation methods and water storage on the flexural strength of two composite resins and a compomer

Detalhes bibliográficos
Autor(a) principal: Rodrigues Filho,Leonardo Eloy
Data de Publicação: 2006
Outros Autores: Burger,Luis Antônio dos Santos, Kenshima,Silvia, Bauer,José Roberto de Oliveira, Medeiros,Igor Studart, Muench,Antonio
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Oral Research
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242006000200010
Resumo: The present study evaluated the flexural strength of three composite resins recommended for direct esthetic restorations: a polyacid modified composite (Dyract AP), a unimodal composite resin (Filtek Z250) and a hybrid composite resin (Point 4). The variation factors, apart from the type of composite resin, were the light activation method and the water storage period. The composite resins were light-cured in continuous mode (40 s, 500 mW/cm²) or in ramp mode (0-800 mW/cm² for 10 s followed by 30 s at 800 mW/cm²) and stored for 24 hours or 30 days in distilled water at 37°C. The data were analyzed by ANOVA and Tukey test for multiple comparisons (alpha = 0.05). The composite resin Z250 presented the highest mean flexural strength (166.74 MPa) and Dyract AP presented the lowest one (129.76 MPa). The storage for 30 days decreased the flexural strength in ramp mode (24 h: 156.64 MPa; 30 days: 135.58 MPa). The light activation method alone did not lead to different flexural strength values.
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spelling Effect of light-activation methods and water storage on the flexural strength of two composite resins and a compomerCompomersDental materialsComposite resinsThe present study evaluated the flexural strength of three composite resins recommended for direct esthetic restorations: a polyacid modified composite (Dyract AP), a unimodal composite resin (Filtek Z250) and a hybrid composite resin (Point 4). The variation factors, apart from the type of composite resin, were the light activation method and the water storage period. The composite resins were light-cured in continuous mode (40 s, 500 mW/cm²) or in ramp mode (0-800 mW/cm² for 10 s followed by 30 s at 800 mW/cm²) and stored for 24 hours or 30 days in distilled water at 37°C. The data were analyzed by ANOVA and Tukey test for multiple comparisons (alpha = 0.05). The composite resin Z250 presented the highest mean flexural strength (166.74 MPa) and Dyract AP presented the lowest one (129.76 MPa). The storage for 30 days decreased the flexural strength in ramp mode (24 h: 156.64 MPa; 30 days: 135.58 MPa). The light activation method alone did not lead to different flexural strength values.Sociedade Brasileira de Pesquisa Odontológica - SBPqO2006-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242006000200010Brazilian Oral Research v.20 n.2 2006reponame:Brazilian Oral Researchinstname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)instacron:SBPQO10.1590/S1806-83242006000200010info:eu-repo/semantics/openAccessRodrigues Filho,Leonardo EloyBurger,Luis Antônio dos SantosKenshima,SilviaBauer,José Roberto de OliveiraMedeiros,Igor StudartMuench,Antonioeng2006-07-18T00:00:00Zoai:scielo:S1806-83242006000200010Revistahttps://www.scielo.br/j/bor/https://old.scielo.br/oai/scielo-oai.phppob@edu.usp.br||bor@sbpqo.org.br1807-31071806-8324opendoar:2006-07-18T00:00Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)false
dc.title.none.fl_str_mv Effect of light-activation methods and water storage on the flexural strength of two composite resins and a compomer
title Effect of light-activation methods and water storage on the flexural strength of two composite resins and a compomer
spellingShingle Effect of light-activation methods and water storage on the flexural strength of two composite resins and a compomer
Rodrigues Filho,Leonardo Eloy
Compomers
Dental materials
Composite resins
title_short Effect of light-activation methods and water storage on the flexural strength of two composite resins and a compomer
title_full Effect of light-activation methods and water storage on the flexural strength of two composite resins and a compomer
title_fullStr Effect of light-activation methods and water storage on the flexural strength of two composite resins and a compomer
title_full_unstemmed Effect of light-activation methods and water storage on the flexural strength of two composite resins and a compomer
title_sort Effect of light-activation methods and water storage on the flexural strength of two composite resins and a compomer
author Rodrigues Filho,Leonardo Eloy
author_facet Rodrigues Filho,Leonardo Eloy
Burger,Luis Antônio dos Santos
Kenshima,Silvia
Bauer,José Roberto de Oliveira
Medeiros,Igor Studart
Muench,Antonio
author_role author
author2 Burger,Luis Antônio dos Santos
Kenshima,Silvia
Bauer,José Roberto de Oliveira
Medeiros,Igor Studart
Muench,Antonio
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Rodrigues Filho,Leonardo Eloy
Burger,Luis Antônio dos Santos
Kenshima,Silvia
Bauer,José Roberto de Oliveira
Medeiros,Igor Studart
Muench,Antonio
dc.subject.por.fl_str_mv Compomers
Dental materials
Composite resins
topic Compomers
Dental materials
Composite resins
description The present study evaluated the flexural strength of three composite resins recommended for direct esthetic restorations: a polyacid modified composite (Dyract AP), a unimodal composite resin (Filtek Z250) and a hybrid composite resin (Point 4). The variation factors, apart from the type of composite resin, were the light activation method and the water storage period. The composite resins were light-cured in continuous mode (40 s, 500 mW/cm²) or in ramp mode (0-800 mW/cm² for 10 s followed by 30 s at 800 mW/cm²) and stored for 24 hours or 30 days in distilled water at 37°C. The data were analyzed by ANOVA and Tukey test for multiple comparisons (alpha = 0.05). The composite resin Z250 presented the highest mean flexural strength (166.74 MPa) and Dyract AP presented the lowest one (129.76 MPa). The storage for 30 days decreased the flexural strength in ramp mode (24 h: 156.64 MPa; 30 days: 135.58 MPa). The light activation method alone did not lead to different flexural strength values.
publishDate 2006
dc.date.none.fl_str_mv 2006-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242006000200010
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242006000200010
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1806-83242006000200010
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 Sociedade Brasileira de Pesquisa Odontológica - SBPqO
publisher.none.fl_str_mv Sociedade Brasileira de Pesquisa Odontológica - SBPqO
dc.source.none.fl_str_mv Brazilian Oral Research v.20 n.2 2006
reponame:Brazilian Oral Research
instname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
instacron:SBPQO
instname_str Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
instacron_str SBPQO
institution SBPQO
reponame_str Brazilian Oral Research
collection Brazilian Oral Research
repository.name.fl_str_mv Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
repository.mail.fl_str_mv pob@edu.usp.br||bor@sbpqo.org.br
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