Effect of light-curing method and indirect veneering materials on the Knoop hardness of a resin cement
Autor(a) principal: | |
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Data de Publicação: | 2009 |
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=S1806-83242009000200003 |
Resumo: | This study evaluated the Knoop hardness of a dual-cured resin cement (Rely-X ARC) activated solely by chemical reaction (control group) or by chemical / physical mode, light-cured through a 1.5 mm thick ceramic (HeraCeram) or composite (Artglass) disc. Light curing was carried out using conventional halogen light (XL2500) for 40 s (QTH); light emitting diodes (Ultrablue Is) for 40 s (LED); and Xenon plasma arc (Apollo 95E) for 3 s (PAC). Bovine incisors had their buccal face flattened and hybridized. On this surface a rubber mold (5 mm in diameter and 1 mm in height) was bulk filled with the resin cement. A polyester strip was seated for direct light curing or through the discs of veneering materials. After dry storage in the dark (24 h 37°C), the samples (n = 5) were sectioned for hardness (KHN) measurements, taken in a microhardness tester (50 gF load 15 s). The data were statistically analyzed by ANOVA and Tukey's test (α = 0.05). The cement presented higher Knoop hardness values with Artglass for QTH and LED, compared to HeraCeram. The control group and the PAC/Artglass group showed lower hardness values compared to the groups light-cured with QTH and LED. PAC/HeraCeram resulted in the worst combination for cement hardness values. |
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Effect of light-curing method and indirect veneering materials on the Knoop hardness of a resin cementResin cementsHardnessComposite resinsDental porcelainThis study evaluated the Knoop hardness of a dual-cured resin cement (Rely-X ARC) activated solely by chemical reaction (control group) or by chemical / physical mode, light-cured through a 1.5 mm thick ceramic (HeraCeram) or composite (Artglass) disc. Light curing was carried out using conventional halogen light (XL2500) for 40 s (QTH); light emitting diodes (Ultrablue Is) for 40 s (LED); and Xenon plasma arc (Apollo 95E) for 3 s (PAC). Bovine incisors had their buccal face flattened and hybridized. On this surface a rubber mold (5 mm in diameter and 1 mm in height) was bulk filled with the resin cement. A polyester strip was seated for direct light curing or through the discs of veneering materials. After dry storage in the dark (24 h 37°C), the samples (n = 5) were sectioned for hardness (KHN) measurements, taken in a microhardness tester (50 gF load 15 s). The data were statistically analyzed by ANOVA and Tukey's test (α = 0.05). The cement presented higher Knoop hardness values with Artglass for QTH and LED, compared to HeraCeram. The control group and the PAC/Artglass group showed lower hardness values compared to the groups light-cured with QTH and LED. PAC/HeraCeram resulted in the worst combination for cement hardness values.Sociedade Brasileira de Pesquisa Odontológica - SBPqO2009-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242009000200003Brazilian Oral Research v.23 n.2 2009reponame:Brazilian Oral Researchinstname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)instacron:SBPQO10.1590/S1806-83242009000200003info:eu-repo/semantics/openAccessIriyama,Nelson TetsuTango,Rubens NisieManetta,Izabella PaolaSinhoreti,Mário Alexandre CoelhoCorrer Sobrinho,LourençoSaavedra,Guilherme de Siqueira Ferreira Anzalonieng2009-10-20T00:00:00Zoai:scielo:S1806-83242009000200003Revistahttps://www.scielo.br/j/bor/https://old.scielo.br/oai/scielo-oai.phppob@edu.usp.br||bor@sbpqo.org.br1807-31071806-8324opendoar:2009-10-20T00:00Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)false |
dc.title.none.fl_str_mv |
Effect of light-curing method and indirect veneering materials on the Knoop hardness of a resin cement |
title |
Effect of light-curing method and indirect veneering materials on the Knoop hardness of a resin cement |
spellingShingle |
Effect of light-curing method and indirect veneering materials on the Knoop hardness of a resin cement Iriyama,Nelson Tetsu Resin cements Hardness Composite resins Dental porcelain |
title_short |
Effect of light-curing method and indirect veneering materials on the Knoop hardness of a resin cement |
title_full |
Effect of light-curing method and indirect veneering materials on the Knoop hardness of a resin cement |
title_fullStr |
Effect of light-curing method and indirect veneering materials on the Knoop hardness of a resin cement |
title_full_unstemmed |
Effect of light-curing method and indirect veneering materials on the Knoop hardness of a resin cement |
title_sort |
Effect of light-curing method and indirect veneering materials on the Knoop hardness of a resin cement |
author |
Iriyama,Nelson Tetsu |
author_facet |
Iriyama,Nelson Tetsu Tango,Rubens Nisie Manetta,Izabella Paola Sinhoreti,Mário Alexandre Coelho Correr Sobrinho,Lourenço Saavedra,Guilherme de Siqueira Ferreira Anzaloni |
author_role |
author |
author2 |
Tango,Rubens Nisie Manetta,Izabella Paola Sinhoreti,Mário Alexandre Coelho Correr Sobrinho,Lourenço Saavedra,Guilherme de Siqueira Ferreira Anzaloni |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Iriyama,Nelson Tetsu Tango,Rubens Nisie Manetta,Izabella Paola Sinhoreti,Mário Alexandre Coelho Correr Sobrinho,Lourenço Saavedra,Guilherme de Siqueira Ferreira Anzaloni |
dc.subject.por.fl_str_mv |
Resin cements Hardness Composite resins Dental porcelain |
topic |
Resin cements Hardness Composite resins Dental porcelain |
description |
This study evaluated the Knoop hardness of a dual-cured resin cement (Rely-X ARC) activated solely by chemical reaction (control group) or by chemical / physical mode, light-cured through a 1.5 mm thick ceramic (HeraCeram) or composite (Artglass) disc. Light curing was carried out using conventional halogen light (XL2500) for 40 s (QTH); light emitting diodes (Ultrablue Is) for 40 s (LED); and Xenon plasma arc (Apollo 95E) for 3 s (PAC). Bovine incisors had their buccal face flattened and hybridized. On this surface a rubber mold (5 mm in diameter and 1 mm in height) was bulk filled with the resin cement. A polyester strip was seated for direct light curing or through the discs of veneering materials. After dry storage in the dark (24 h 37°C), the samples (n = 5) were sectioned for hardness (KHN) measurements, taken in a microhardness tester (50 gF load 15 s). The data were statistically analyzed by ANOVA and Tukey's test (α = 0.05). The cement presented higher Knoop hardness values with Artglass for QTH and LED, compared to HeraCeram. The control group and the PAC/Artglass group showed lower hardness values compared to the groups light-cured with QTH and LED. PAC/HeraCeram resulted in the worst combination for cement hardness values. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-06-01 |
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=S1806-83242009000200003 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242009000200003 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1806-83242009000200003 |
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.23 n.2 2009 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_ |
1750318321613406208 |