Effect of light-curing method and indirect veneering materials on the Knoop hardness of a resin cement

Detalhes bibliográficos
Autor(a) principal: Iriyama,Nelson Tetsu
Data de Publicação: 2009
Outros Autores: Tango,Rubens Nisie, Manetta,Izabella Paola, Sinhoreti,Mário Alexandre Coelho, Correr Sobrinho,Lourenço, Saavedra,Guilherme de Siqueira Ferreira Anzaloni
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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spelling 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
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