Effect of thickness of indirect restoration and distance from the light-curing unit tip on the hardness of a dual-cured resin cement
Autor(a) principal: | |
---|---|
Data de Publicação: | 2010 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S0103-64402010000200005 http://hdl.handle.net/11449/71823 |
Resumo: | This study evaluated the Knoop hardness and polymerization depth of a dual-cured resin cement, light-activated at different distances through different thicknesses of composite resin. One bovine incisor was embedded in resin and its buccal surface was flattened. Dentin was covered with PVC film where a mold (0.8-mm-thick and 5 mm diameter) was filled with cement and covered with another PVC film. Light curing (40 s) was carried out through resin discs (2, 3, 4 or 5 mm) with a halogen light positioned 0, 1, 2 or 3 mm from the resin surface. After storage, specimens were sectioned for hardness measurements (top, center, and bottom). Data were subjected to split-plot ANOVA and Tukey's test (α=0.05). The increase in resin disc thickness decreased cement hardness. The increase in the distance of the light curing tip decreased hardness at the top region. Specimens showed the lowest hardness values at the bottom, and the highest at the center. Resin cement hardness was influenced by the thickness of the indirect restoration and by the distance between the light-curing unit tip and the resin cement surface. |
id |
UNSP_fae31f7b40bd1ae63f5cc4c743bf5d4c |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/71823 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Effect of thickness of indirect restoration and distance from the light-curing unit tip on the hardness of a dual-cured resin cementComposite resinDental materialsHardnessResin cementsFiltek Z250resinresin cementtooth cementanalysis of varianceanimalcattlechemistrydental bondingdental equipmentdental surgerydrug effectenamelhardnessmethodologynonparametric testAnalysis of VarianceAnimalsCattleComposite ResinsCuring Lights, DentalDental Bonding, Light-CuredDental CementsDental EnamelDental Restoration, PermanentResin CementsStatistics, NonparametricThis study evaluated the Knoop hardness and polymerization depth of a dual-cured resin cement, light-activated at different distances through different thicknesses of composite resin. One bovine incisor was embedded in resin and its buccal surface was flattened. Dentin was covered with PVC film where a mold (0.8-mm-thick and 5 mm diameter) was filled with cement and covered with another PVC film. Light curing (40 s) was carried out through resin discs (2, 3, 4 or 5 mm) with a halogen light positioned 0, 1, 2 or 3 mm from the resin surface. After storage, specimens were sectioned for hardness measurements (top, center, and bottom). Data were subjected to split-plot ANOVA and Tukey's test (α=0.05). The increase in resin disc thickness decreased cement hardness. The increase in the distance of the light curing tip decreased hardness at the top region. Specimens showed the lowest hardness values at the bottom, and the highest at the center. Resin cement hardness was influenced by the thickness of the indirect restoration and by the distance between the light-curing unit tip and the resin cement surface.Piracicaba Dental School State University of Campinas, Piracicaba, SPDepartment of Dental Materials and Prosthodontics São José dos Campos Dental School São Paulo State University, São José dos Campos, SPDepartment of Restorative Dentistry Piracicaba Dental School State University of Campinas, Piracicaba, SPDepartment of Pediatric Dentistry Piracicaba Dental School State University of Campinas, Piracicaba, SPDepartment of Dental Materials and Prosthodontics São José dos Campos Dental School São Paulo State University, São José dos Campos, SPUniversidade Estadual de Campinas (UNICAMP)Universidade Estadual Paulista (Unesp)de Paula, Andréia BolzanTango, Rubens Nisie [UNESP]Sinhoreti, Mário Alexandre CoelhoAlves, Marcelo CorrêaPuppin-Rontani, Regina M.2014-05-27T11:24:46Z2014-05-27T11:24:46Z2010-08-20info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article117-122application/pdfhttp://dx.doi.org/10.1590/S0103-64402010000200005Brazilian Dental Journal, v. 21, n. 2, p. 117-122, 2010.0103-64401806-4760http://hdl.handle.net/11449/7182310.1590/S0103-64402010000200005S0103-644020100002000052-s2.0-779556296142-s2.0-77955629614.pdf91387166804406030000-0003-0946-1826Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Dental Journal0,476info:eu-repo/semantics/openAccess2023-12-17T06:23:35Zoai:repositorio.unesp.br:11449/71823Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:35:54.526475Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of thickness of indirect restoration and distance from the light-curing unit tip on the hardness of a dual-cured resin cement |
title |
Effect of thickness of indirect restoration and distance from the light-curing unit tip on the hardness of a dual-cured resin cement |
spellingShingle |
Effect of thickness of indirect restoration and distance from the light-curing unit tip on the hardness of a dual-cured resin cement de Paula, Andréia Bolzan Composite resin Dental materials Hardness Resin cements Filtek Z250 resin resin cement tooth cement analysis of variance animal cattle chemistry dental bonding dental equipment dental surgery drug effect enamel hardness methodology nonparametric test Analysis of Variance Animals Cattle Composite Resins Curing Lights, Dental Dental Bonding, Light-Cured Dental Cements Dental Enamel Dental Restoration, Permanent Resin Cements Statistics, Nonparametric |
title_short |
Effect of thickness of indirect restoration and distance from the light-curing unit tip on the hardness of a dual-cured resin cement |
title_full |
Effect of thickness of indirect restoration and distance from the light-curing unit tip on the hardness of a dual-cured resin cement |
title_fullStr |
Effect of thickness of indirect restoration and distance from the light-curing unit tip on the hardness of a dual-cured resin cement |
title_full_unstemmed |
Effect of thickness of indirect restoration and distance from the light-curing unit tip on the hardness of a dual-cured resin cement |
title_sort |
Effect of thickness of indirect restoration and distance from the light-curing unit tip on the hardness of a dual-cured resin cement |
author |
de Paula, Andréia Bolzan |
author_facet |
de Paula, Andréia Bolzan Tango, Rubens Nisie [UNESP] Sinhoreti, Mário Alexandre Coelho Alves, Marcelo Corrêa Puppin-Rontani, Regina M. |
author_role |
author |
author2 |
Tango, Rubens Nisie [UNESP] Sinhoreti, Mário Alexandre Coelho Alves, Marcelo Corrêa Puppin-Rontani, Regina M. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual de Campinas (UNICAMP) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
de Paula, Andréia Bolzan Tango, Rubens Nisie [UNESP] Sinhoreti, Mário Alexandre Coelho Alves, Marcelo Corrêa Puppin-Rontani, Regina M. |
dc.subject.por.fl_str_mv |
Composite resin Dental materials Hardness Resin cements Filtek Z250 resin resin cement tooth cement analysis of variance animal cattle chemistry dental bonding dental equipment dental surgery drug effect enamel hardness methodology nonparametric test Analysis of Variance Animals Cattle Composite Resins Curing Lights, Dental Dental Bonding, Light-Cured Dental Cements Dental Enamel Dental Restoration, Permanent Resin Cements Statistics, Nonparametric |
topic |
Composite resin Dental materials Hardness Resin cements Filtek Z250 resin resin cement tooth cement analysis of variance animal cattle chemistry dental bonding dental equipment dental surgery drug effect enamel hardness methodology nonparametric test Analysis of Variance Animals Cattle Composite Resins Curing Lights, Dental Dental Bonding, Light-Cured Dental Cements Dental Enamel Dental Restoration, Permanent Resin Cements Statistics, Nonparametric |
description |
This study evaluated the Knoop hardness and polymerization depth of a dual-cured resin cement, light-activated at different distances through different thicknesses of composite resin. One bovine incisor was embedded in resin and its buccal surface was flattened. Dentin was covered with PVC film where a mold (0.8-mm-thick and 5 mm diameter) was filled with cement and covered with another PVC film. Light curing (40 s) was carried out through resin discs (2, 3, 4 or 5 mm) with a halogen light positioned 0, 1, 2 or 3 mm from the resin surface. After storage, specimens were sectioned for hardness measurements (top, center, and bottom). Data were subjected to split-plot ANOVA and Tukey's test (α=0.05). The increase in resin disc thickness decreased cement hardness. The increase in the distance of the light curing tip decreased hardness at the top region. Specimens showed the lowest hardness values at the bottom, and the highest at the center. Resin cement hardness was influenced by the thickness of the indirect restoration and by the distance between the light-curing unit tip and the resin cement surface. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-08-20 2014-05-27T11:24:46Z 2014-05-27T11:24:46Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S0103-64402010000200005 Brazilian Dental Journal, v. 21, n. 2, p. 117-122, 2010. 0103-6440 1806-4760 http://hdl.handle.net/11449/71823 10.1590/S0103-64402010000200005 S0103-64402010000200005 2-s2.0-77955629614 2-s2.0-77955629614.pdf 9138716680440603 0000-0003-0946-1826 |
url |
http://dx.doi.org/10.1590/S0103-64402010000200005 http://hdl.handle.net/11449/71823 |
identifier_str_mv |
Brazilian Dental Journal, v. 21, n. 2, p. 117-122, 2010. 0103-6440 1806-4760 10.1590/S0103-64402010000200005 S0103-64402010000200005 2-s2.0-77955629614 2-s2.0-77955629614.pdf 9138716680440603 0000-0003-0946-1826 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brazilian Dental Journal 0,476 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
117-122 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129225092235264 |