Influência dos agentes clareadores na microdureza de resina composta nanoparticulada
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.revistargo.com.br/ojs/index.php/revista/article/viewArticle/637 http://hdl.handle.net/11449/70916 |
Resumo: | Objective: To assess the effect of bleaching agents on the microhardness of nanoparticle resin composite. Methods: Twenty-eight cylindrical test specimens (8× 1mm) of Filtek™ Supreme XT resin (3M/ESPE) were prepared and divided into 5 groups. The initial Vickers microhardness was measured (load of 50 grams force for 30 seconds) on the top surface of the test specimens. The groups were treated and divided as follows: G1 - artificial saliva (21 days - control); G2 - 7% hydrogen peroxide gel applied for 4h/day, for 14 days; G3 - 10% carbamide peroxide for 4h/day, for 14 days: G4 - 35% hydrogen peroxide gel applied in three sessions of 30 minutes each, with an interval of one week (21 days) between the sessions; G5 - 35% carbamide peroxide, three sessions of 30 minutes each, with an interval of one week (21 days) between the sessions. The top surfaces of the test specimens received treatment and were submitted to the Vickers microhardness test. Results: The results obtained were submitted to the Analysis of Variance at a fixed criterion, at a level of significance of p=0.05. No significant differences were observed among the treatments tested (p=0.42) when compared with G1. Significant differences (Tukey test) were found when the initial microhardness values were compared with the values after experimental treatments (p<0.01). Conclusion: The application of bleaching agents did not alter the microhardness of resin composites. Therefore, there is no need to change restorations after bleaching. |
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Influência dos agentes clareadores na microdureza de resina composta nanoparticuladaInfluence of bleaching agents on the microhardness of nanoparticle resin compositeComposite resinsHardnessTooth bleachingObjective: To assess the effect of bleaching agents on the microhardness of nanoparticle resin composite. Methods: Twenty-eight cylindrical test specimens (8× 1mm) of Filtek™ Supreme XT resin (3M/ESPE) were prepared and divided into 5 groups. The initial Vickers microhardness was measured (load of 50 grams force for 30 seconds) on the top surface of the test specimens. The groups were treated and divided as follows: G1 - artificial saliva (21 days - control); G2 - 7% hydrogen peroxide gel applied for 4h/day, for 14 days; G3 - 10% carbamide peroxide for 4h/day, for 14 days: G4 - 35% hydrogen peroxide gel applied in three sessions of 30 minutes each, with an interval of one week (21 days) between the sessions; G5 - 35% carbamide peroxide, three sessions of 30 minutes each, with an interval of one week (21 days) between the sessions. The top surfaces of the test specimens received treatment and were submitted to the Vickers microhardness test. Results: The results obtained were submitted to the Analysis of Variance at a fixed criterion, at a level of significance of p=0.05. No significant differences were observed among the treatments tested (p=0.42) when compared with G1. Significant differences (Tukey test) were found when the initial microhardness values were compared with the values after experimental treatments (p<0.01). Conclusion: The application of bleaching agents did not alter the microhardness of resin composites. Therefore, there is no need to change restorations after bleaching.Centro Universitário Franciscano Faculdade de Odontologia, Travessa Cassei 300/108, 97050-110 Santa Maria, RSUniversidade Estadual Paulista Júlio de Mesquita Filho Faculdade de Odontologia, Araraquara, SPUniversidade de São Paulo Instituto de Física, São Carlos, SPUniversidade Federal de Santa Maria, Santa Maria, RSUniversidade Estadual Paulista Júlio de Mesquita Filho Faculdade de Odontologia, Araraquara, SPCentro Universitário Franciscano (UNIFRA)Universidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Universidade Federal de Santa Maria (UFSM)Becker, Anne BussCosta, Simone Xavier Silva [UNESP]Rastelli, Alessandra Nara de Sauza [UNESP]Andrade, Marcelo Ferrarezi de [UNESP]Bagnato, Vanderlei SalvadorBier, Carlos Alexandre Souza2014-05-27T11:23:51Z2014-05-27T11:23:51Z2009-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article27-31application/pdfhttp://www.revistargo.com.br/ojs/index.php/revista/article/viewArticle/637RGO Revista Gaucha de Odontologia, v. 57, n. 1, p. 27-31, 2009.0103-69711981-8637http://hdl.handle.net/11449/709162-s2.0-799517447072-s2.0-79951744707.pdf2897622509429759Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRGO Revista Gaucha de Odontologia0,104info:eu-repo/semantics/openAccess2023-10-10T06:09:32Zoai:repositorio.unesp.br:11449/70916Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:34:08.829174Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Influência dos agentes clareadores na microdureza de resina composta nanoparticulada Influence of bleaching agents on the microhardness of nanoparticle resin composite |
title |
Influência dos agentes clareadores na microdureza de resina composta nanoparticulada |
spellingShingle |
Influência dos agentes clareadores na microdureza de resina composta nanoparticulada Becker, Anne Buss Composite resins Hardness Tooth bleaching |
title_short |
Influência dos agentes clareadores na microdureza de resina composta nanoparticulada |
title_full |
Influência dos agentes clareadores na microdureza de resina composta nanoparticulada |
title_fullStr |
Influência dos agentes clareadores na microdureza de resina composta nanoparticulada |
title_full_unstemmed |
Influência dos agentes clareadores na microdureza de resina composta nanoparticulada |
title_sort |
Influência dos agentes clareadores na microdureza de resina composta nanoparticulada |
author |
Becker, Anne Buss |
author_facet |
Becker, Anne Buss Costa, Simone Xavier Silva [UNESP] Rastelli, Alessandra Nara de Sauza [UNESP] Andrade, Marcelo Ferrarezi de [UNESP] Bagnato, Vanderlei Salvador Bier, Carlos Alexandre Souza |
author_role |
author |
author2 |
Costa, Simone Xavier Silva [UNESP] Rastelli, Alessandra Nara de Sauza [UNESP] Andrade, Marcelo Ferrarezi de [UNESP] Bagnato, Vanderlei Salvador Bier, Carlos Alexandre Souza |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Centro Universitário Franciscano (UNIFRA) Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) Universidade Federal de Santa Maria (UFSM) |
dc.contributor.author.fl_str_mv |
Becker, Anne Buss Costa, Simone Xavier Silva [UNESP] Rastelli, Alessandra Nara de Sauza [UNESP] Andrade, Marcelo Ferrarezi de [UNESP] Bagnato, Vanderlei Salvador Bier, Carlos Alexandre Souza |
dc.subject.por.fl_str_mv |
Composite resins Hardness Tooth bleaching |
topic |
Composite resins Hardness Tooth bleaching |
description |
Objective: To assess the effect of bleaching agents on the microhardness of nanoparticle resin composite. Methods: Twenty-eight cylindrical test specimens (8× 1mm) of Filtek™ Supreme XT resin (3M/ESPE) were prepared and divided into 5 groups. The initial Vickers microhardness was measured (load of 50 grams force for 30 seconds) on the top surface of the test specimens. The groups were treated and divided as follows: G1 - artificial saliva (21 days - control); G2 - 7% hydrogen peroxide gel applied for 4h/day, for 14 days; G3 - 10% carbamide peroxide for 4h/day, for 14 days: G4 - 35% hydrogen peroxide gel applied in three sessions of 30 minutes each, with an interval of one week (21 days) between the sessions; G5 - 35% carbamide peroxide, three sessions of 30 minutes each, with an interval of one week (21 days) between the sessions. The top surfaces of the test specimens received treatment and were submitted to the Vickers microhardness test. Results: The results obtained were submitted to the Analysis of Variance at a fixed criterion, at a level of significance of p=0.05. No significant differences were observed among the treatments tested (p=0.42) when compared with G1. Significant differences (Tukey test) were found when the initial microhardness values were compared with the values after experimental treatments (p<0.01). Conclusion: The application of bleaching agents did not alter the microhardness of resin composites. Therefore, there is no need to change restorations after bleaching. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01-01 2014-05-27T11:23:51Z 2014-05-27T11:23:51Z |
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://www.revistargo.com.br/ojs/index.php/revista/article/viewArticle/637 RGO Revista Gaucha de Odontologia, v. 57, n. 1, p. 27-31, 2009. 0103-6971 1981-8637 http://hdl.handle.net/11449/70916 2-s2.0-79951744707 2-s2.0-79951744707.pdf 2897622509429759 |
url |
http://www.revistargo.com.br/ojs/index.php/revista/article/viewArticle/637 http://hdl.handle.net/11449/70916 |
identifier_str_mv |
RGO Revista Gaucha de Odontologia, v. 57, n. 1, p. 27-31, 2009. 0103-6971 1981-8637 2-s2.0-79951744707 2-s2.0-79951744707.pdf 2897622509429759 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
RGO Revista Gaucha de Odontologia 0,104 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
27-31 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 |
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1808128379463925760 |