Effect of light-activation methods and water storage on the flexural strength of two composite resins and a compomer
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , , |
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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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 |
format |
article |
status_str |
publishedVersion |
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 |
_version_ |
1750318320756719616 |