Effect of accelerated aging on the microhardness and color stability of flexible resins for dentures
Autor(a) principal: | |
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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/S1806-83242010000100019 http://hdl.handle.net/11449/71537 |
Resumo: | Acrylic resins have been widely used due to their acceptable esthetics and desirable characteristics such as easy handling, good thermal conductivity, low permeability to oral fluids and color stability. Flexible resins were introduced on the market as an alternative to the use of conventional acrylic resins in the construction of complete and partial removable dentures. Although these resins present advantages in terms of esthetics and comfort, studies assessing chromatic and microhardness alterations of these materials are still scarce in the related literature. The aim of this study was to evaluate the chromatic and microhardness alterations of two commercial brands of flexible resins in comparison to the conventional resin Triplex when submitted to accelerated aging. The resins were manipulated according to manufacturers' instructions and inserted into a silicone matrix to obtain 21 specimens divided into 3 groups: Triplex, Ppflex and Valplast. Triplex presented the highest microhardness value (p < 0.05) for all the aging periods, which was significantly different from that of the other resins, followed by the values of Valplast and Ppflex. Comparison between the flexible resins (Ppflex and Valplast) revealed a statistically significant difference (p < 0.05) as regards color. The flexible resin Ppflex and the conventional resin Triplex presented no statistically significant difference (p < 0.05) as regards aging. The accelerated aging significantly increased the microhardness values of the resins, with the highest values being observed for Triplex. Valplast presented the greatest chromatic alteration after accelerated aging. |
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Effect of accelerated aging on the microhardness and color stability of flexible resins for denturesAcrylic resinsColorHardnessacrylic acid resinbiomedical and dental materialsanalysis of variancechemistrycolordenturehardnessheathumanmaterials testingprosthesisradiation exposuresurface propertytimeAcrylic ResinsAnalysis of VarianceDental MaterialsDenture, Partial, RemovableHardness TestsHot TemperatureHumansMaterials TestingProsthesis ColoringSurface PropertiesTime FactorsAcrylic resins have been widely used due to their acceptable esthetics and desirable characteristics such as easy handling, good thermal conductivity, low permeability to oral fluids and color stability. Flexible resins were introduced on the market as an alternative to the use of conventional acrylic resins in the construction of complete and partial removable dentures. Although these resins present advantages in terms of esthetics and comfort, studies assessing chromatic and microhardness alterations of these materials are still scarce in the related literature. The aim of this study was to evaluate the chromatic and microhardness alterations of two commercial brands of flexible resins in comparison to the conventional resin Triplex when submitted to accelerated aging. The resins were manipulated according to manufacturers' instructions and inserted into a silicone matrix to obtain 21 specimens divided into 3 groups: Triplex, Ppflex and Valplast. Triplex presented the highest microhardness value (p < 0.05) for all the aging periods, which was significantly different from that of the other resins, followed by the values of Valplast and Ppflex. Comparison between the flexible resins (Ppflex and Valplast) revealed a statistically significant difference (p < 0.05) as regards color. The flexible resin Ppflex and the conventional resin Triplex presented no statistically significant difference (p < 0.05) as regards aging. The accelerated aging significantly increased the microhardness values of the resins, with the highest values being observed for Triplex. Valplast presented the greatest chromatic alteration after accelerated aging.Faculdade de Odontologia de Araçatuba Unesp - University Estadual Paulista, Araçatuba, SPDepartment of Dental Materials and Prosthodontics Faculdade de Odontologia de Araçatuba Unesp - University Estadual Paulista, Araçatuba, SPFaculdade de Odontologia de Araçatuba Unesp - University Estadual Paulista, Araçatuba, SPDepartment of Dental Materials and Prosthodontics Faculdade de Odontologia de Araçatuba Unesp - University Estadual Paulista, Araçatuba, SPUniversidade Estadual Paulista (Unesp)Goiato, Marcelo Coelho [UNESP]Santos, Daniela Micheline dos [UNESP]Haddad, Marcela Filie [UNESP]Pesqueira, Aldieris Alves [UNESP]2014-05-27T11:24:36Z2014-05-27T11:24:36Z2010-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article114-119application/pdfhttp://dx.doi.org/10.1590/S1806-83242010000100019Brazilian Oral Research, v. 24, n. 1, p. 114-119, 2010.1806-83241807-3107http://hdl.handle.net/11449/7153710.1590/S1806-83242010000100019S1806-832420100001000192-s2.0-779555378632-s2.0-77955537863.pdf97198838148725820000-0002-3800-3050Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Oral Research1.223info:eu-repo/semantics/openAccess2023-12-12T06:24:44Zoai:repositorio.unesp.br:11449/71537Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-12T06:24:44Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of accelerated aging on the microhardness and color stability of flexible resins for dentures |
title |
Effect of accelerated aging on the microhardness and color stability of flexible resins for dentures |
spellingShingle |
Effect of accelerated aging on the microhardness and color stability of flexible resins for dentures Goiato, Marcelo Coelho [UNESP] Acrylic resins Color Hardness acrylic acid resin biomedical and dental materials analysis of variance chemistry color denture hardness heat human materials testing prosthesis radiation exposure surface property time Acrylic Resins Analysis of Variance Dental Materials Denture, Partial, Removable Hardness Tests Hot Temperature Humans Materials Testing Prosthesis Coloring Surface Properties Time Factors |
title_short |
Effect of accelerated aging on the microhardness and color stability of flexible resins for dentures |
title_full |
Effect of accelerated aging on the microhardness and color stability of flexible resins for dentures |
title_fullStr |
Effect of accelerated aging on the microhardness and color stability of flexible resins for dentures |
title_full_unstemmed |
Effect of accelerated aging on the microhardness and color stability of flexible resins for dentures |
title_sort |
Effect of accelerated aging on the microhardness and color stability of flexible resins for dentures |
author |
Goiato, Marcelo Coelho [UNESP] |
author_facet |
Goiato, Marcelo Coelho [UNESP] Santos, Daniela Micheline dos [UNESP] Haddad, Marcela Filie [UNESP] Pesqueira, Aldieris Alves [UNESP] |
author_role |
author |
author2 |
Santos, Daniela Micheline dos [UNESP] Haddad, Marcela Filie [UNESP] Pesqueira, Aldieris Alves [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Goiato, Marcelo Coelho [UNESP] Santos, Daniela Micheline dos [UNESP] Haddad, Marcela Filie [UNESP] Pesqueira, Aldieris Alves [UNESP] |
dc.subject.por.fl_str_mv |
Acrylic resins Color Hardness acrylic acid resin biomedical and dental materials analysis of variance chemistry color denture hardness heat human materials testing prosthesis radiation exposure surface property time Acrylic Resins Analysis of Variance Dental Materials Denture, Partial, Removable Hardness Tests Hot Temperature Humans Materials Testing Prosthesis Coloring Surface Properties Time Factors |
topic |
Acrylic resins Color Hardness acrylic acid resin biomedical and dental materials analysis of variance chemistry color denture hardness heat human materials testing prosthesis radiation exposure surface property time Acrylic Resins Analysis of Variance Dental Materials Denture, Partial, Removable Hardness Tests Hot Temperature Humans Materials Testing Prosthesis Coloring Surface Properties Time Factors |
description |
Acrylic resins have been widely used due to their acceptable esthetics and desirable characteristics such as easy handling, good thermal conductivity, low permeability to oral fluids and color stability. Flexible resins were introduced on the market as an alternative to the use of conventional acrylic resins in the construction of complete and partial removable dentures. Although these resins present advantages in terms of esthetics and comfort, studies assessing chromatic and microhardness alterations of these materials are still scarce in the related literature. The aim of this study was to evaluate the chromatic and microhardness alterations of two commercial brands of flexible resins in comparison to the conventional resin Triplex when submitted to accelerated aging. The resins were manipulated according to manufacturers' instructions and inserted into a silicone matrix to obtain 21 specimens divided into 3 groups: Triplex, Ppflex and Valplast. Triplex presented the highest microhardness value (p < 0.05) for all the aging periods, which was significantly different from that of the other resins, followed by the values of Valplast and Ppflex. Comparison between the flexible resins (Ppflex and Valplast) revealed a statistically significant difference (p < 0.05) as regards color. The flexible resin Ppflex and the conventional resin Triplex presented no statistically significant difference (p < 0.05) as regards aging. The accelerated aging significantly increased the microhardness values of the resins, with the highest values being observed for Triplex. Valplast presented the greatest chromatic alteration after accelerated aging. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-01-01 2014-05-27T11:24:36Z 2014-05-27T11:24:36Z |
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/S1806-83242010000100019 Brazilian Oral Research, v. 24, n. 1, p. 114-119, 2010. 1806-8324 1807-3107 http://hdl.handle.net/11449/71537 10.1590/S1806-83242010000100019 S1806-83242010000100019 2-s2.0-77955537863 2-s2.0-77955537863.pdf 9719883814872582 0000-0002-3800-3050 |
url |
http://dx.doi.org/10.1590/S1806-83242010000100019 http://hdl.handle.net/11449/71537 |
identifier_str_mv |
Brazilian Oral Research, v. 24, n. 1, p. 114-119, 2010. 1806-8324 1807-3107 10.1590/S1806-83242010000100019 S1806-83242010000100019 2-s2.0-77955537863 2-s2.0-77955537863.pdf 9719883814872582 0000-0002-3800-3050 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brazilian Oral Research 1.223 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
114-119 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_ |
1799965265357701120 |