Influence of light-exposure methods and depths of cavity on the microhardness of dual-cured core build-up resin composites
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of applied oral science (Online) |
Texto Completo: | https://www.revistas.usp.br/jaos/article/view/80541 |
Resumo: | Objective: The purpose of this study was to evaluate the Knoop hardness number (KHN) of dual-cured core build-up resin composites (DCBRCs) at 6 depths of cavity after 3 post-irradiation times by 4 light-exposure methods. Material and Methods: Five specimens each of DCBRCs (Clearfil DC Core Plus [DCP] and Unifil Core EM [UCE]) were filled in acrylic resin blocks with a semi-cylindrical cavity and light-cured using an LED light unit (power density: 1,000 mW/cm2)at the top surface by irradiation for 20 seconds (20 s), 40 seconds (40 s), bonding agent plus 20 seconds (B+20 s), or 40 seconds plus light irradiation of both sides of each acrylic resin block for 40 seconds each (120 s). KHN was measured at depths of 0.5, 2.0, 4.0, 6.0, 8.0, and 10.0 mm at 0.5 hours, 24 hours, and 7 days post-irradiation. Statistical analysis was performed using repeated measures ANOVA and Tukey's compromise post-hoc test with a significance level of p |
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oai:revistas.usp.br:article/80541 |
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Journal of applied oral science (Online) |
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Influence of light-exposure methods and depths of cavity on the microhardness of dual-cured core build-up resin composites Objective: The purpose of this study was to evaluate the Knoop hardness number (KHN) of dual-cured core build-up resin composites (DCBRCs) at 6 depths of cavity after 3 post-irradiation times by 4 light-exposure methods. Material and Methods: Five specimens each of DCBRCs (Clearfil DC Core Plus [DCP] and Unifil Core EM [UCE]) were filled in acrylic resin blocks with a semi-cylindrical cavity and light-cured using an LED light unit (power density: 1,000 mW/cm2)at the top surface by irradiation for 20 seconds (20 s), 40 seconds (40 s), bonding agent plus 20 seconds (B+20 s), or 40 seconds plus light irradiation of both sides of each acrylic resin block for 40 seconds each (120 s). KHN was measured at depths of 0.5, 2.0, 4.0, 6.0, 8.0, and 10.0 mm at 0.5 hours, 24 hours, and 7 days post-irradiation. Statistical analysis was performed using repeated measures ANOVA and Tukey's compromise post-hoc test with a significance level of pUniversidade de São Paulo. Faculdade de Odontologia de Bauru2014-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/jaos/article/view/8054110.1590/1678-775720130359Journal of Applied Oral Science; Vol. 22 No. 1 (2014); 44-51Journal of Applied Oral Science; Vol. 22 Núm. 1 (2014); 44-51Journal of Applied Oral Science; v. 22 n. 1 (2014); 44-511678-77651678-7757reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/jaos/article/view/80541/84204Copyright (c) 2014 Journal of Applied Oral Scienceinfo:eu-repo/semantics/openAccessYOSHIDA, Keiichi MENG, Xiangfeng 2014-05-08T13:28:52Zoai:revistas.usp.br:article/80541Revistahttp://www.scielo.br/jaosPUBhttps://www.revistas.usp.br/jaos/oai||jaos@usp.br1678-77651678-7757opendoar:2014-05-08T13:28:52Journal of applied oral science (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Influence of light-exposure methods and depths of cavity on the microhardness of dual-cured core build-up resin composites |
title |
Influence of light-exposure methods and depths of cavity on the microhardness of dual-cured core build-up resin composites |
spellingShingle |
Influence of light-exposure methods and depths of cavity on the microhardness of dual-cured core build-up resin composites YOSHIDA, Keiichi |
title_short |
Influence of light-exposure methods and depths of cavity on the microhardness of dual-cured core build-up resin composites |
title_full |
Influence of light-exposure methods and depths of cavity on the microhardness of dual-cured core build-up resin composites |
title_fullStr |
Influence of light-exposure methods and depths of cavity on the microhardness of dual-cured core build-up resin composites |
title_full_unstemmed |
Influence of light-exposure methods and depths of cavity on the microhardness of dual-cured core build-up resin composites |
title_sort |
Influence of light-exposure methods and depths of cavity on the microhardness of dual-cured core build-up resin composites |
author |
YOSHIDA, Keiichi |
author_facet |
YOSHIDA, Keiichi MENG, Xiangfeng |
author_role |
author |
author2 |
MENG, Xiangfeng |
author2_role |
author |
dc.contributor.author.fl_str_mv |
YOSHIDA, Keiichi MENG, Xiangfeng |
description |
Objective: The purpose of this study was to evaluate the Knoop hardness number (KHN) of dual-cured core build-up resin composites (DCBRCs) at 6 depths of cavity after 3 post-irradiation times by 4 light-exposure methods. Material and Methods: Five specimens each of DCBRCs (Clearfil DC Core Plus [DCP] and Unifil Core EM [UCE]) were filled in acrylic resin blocks with a semi-cylindrical cavity and light-cured using an LED light unit (power density: 1,000 mW/cm2)at the top surface by irradiation for 20 seconds (20 s), 40 seconds (40 s), bonding agent plus 20 seconds (B+20 s), or 40 seconds plus light irradiation of both sides of each acrylic resin block for 40 seconds each (120 s). KHN was measured at depths of 0.5, 2.0, 4.0, 6.0, 8.0, and 10.0 mm at 0.5 hours, 24 hours, and 7 days post-irradiation. Statistical analysis was performed using repeated measures ANOVA and Tukey's compromise post-hoc test with a significance level of p |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/jaos/article/view/80541 10.1590/1678-775720130359 |
url |
https://www.revistas.usp.br/jaos/article/view/80541 |
identifier_str_mv |
10.1590/1678-775720130359 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/jaos/article/view/80541/84204 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2014 Journal of Applied Oral Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2014 Journal of Applied Oral Science |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Odontologia de Bauru |
publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Odontologia de Bauru |
dc.source.none.fl_str_mv |
Journal of Applied Oral Science; Vol. 22 No. 1 (2014); 44-51 Journal of Applied Oral Science; Vol. 22 Núm. 1 (2014); 44-51 Journal of Applied Oral Science; v. 22 n. 1 (2014); 44-51 1678-7765 1678-7757 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 |
_version_ |
1800221678105526272 |