Fracture resistance of endodontically-treated teeth submitted to bleaching treatment with hydrogen peroxide and titanium dioxide nanoparticles photoactivated by LED-laser
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/rou.2014.027 http://hdl.handle.net/11449/126157 |
Resumo: | Objective:The aim of this study was evaluate the fracture resistance of endodontically-treated teeth after bleaching treatment using 15% hydrogen peroxide plus titanium dioxide nanoparticles (15HPTiO2) photoactivated by LED-laser, in comparison with protocols using 35% hydrogen peroxide (35HP), 37% carbamide peroxide (37CP) or sodium perborate (SP).Material and method:After endodontic treatment, fifty bovine extracted incisors were divided into five groups (n = 10): G1- without bleaching; G2- 35HP; G3- 37CP; G4- 15HPTiO2 photoactivated by LED-laser and G5- SP. In G2 and G4, the bleaching protocol was applied in 4 sessions, with a 7 day interval between each session. In G3 and G5, the materials were kept in the pulp chamber for 21 days, but replaced every 7 days. After 21 days, the crowns were subjected to compressive load at a cross head speed of 0.5 mm/min, applied at 135° to the long axis of the root using an eletromechanical testing machine, until fracture. The data were submitted to ANOVA and Tukey tests (p = 0.05).Result:The bleaching treatment in endodontically-treated teeth with 15HP plus TiO2 nanoparticles and photoactivated by LED-laser caused reduction of the fracture resistance similarly provided by 35HP, 37CP or SP (p>0.05). All bleaching treatments reduced the fracture resistance compared to unbleached teeth (p<0.05).Conclusion:All bleaching protocols reduced the fracture resistance of endodontically-treated teeth, but there were no differences between each other. |
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Repositório Institucional da UNESP |
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Fracture resistance of endodontically-treated teeth submitted to bleaching treatment with hydrogen peroxide and titanium dioxide nanoparticles photoactivated by LED-laserResistência à fratura de dentes tratados endodonticamente submetidos a tratamento clareador com peróxido de hidrogênio e nanopartículas de dióxido de titânio fotoativado por LED-laserNanoparticlesperoxidestooth bleachingNanopartículasperóxidosclareamento dentalObjective:The aim of this study was evaluate the fracture resistance of endodontically-treated teeth after bleaching treatment using 15% hydrogen peroxide plus titanium dioxide nanoparticles (15HPTiO2) photoactivated by LED-laser, in comparison with protocols using 35% hydrogen peroxide (35HP), 37% carbamide peroxide (37CP) or sodium perborate (SP).Material and method:After endodontic treatment, fifty bovine extracted incisors were divided into five groups (n = 10): G1- without bleaching; G2- 35HP; G3- 37CP; G4- 15HPTiO2 photoactivated by LED-laser and G5- SP. In G2 and G4, the bleaching protocol was applied in 4 sessions, with a 7 day interval between each session. In G3 and G5, the materials were kept in the pulp chamber for 21 days, but replaced every 7 days. After 21 days, the crowns were subjected to compressive load at a cross head speed of 0.5 mm/min, applied at 135° to the long axis of the root using an eletromechanical testing machine, until fracture. The data were submitted to ANOVA and Tukey tests (p = 0.05).Result:The bleaching treatment in endodontically-treated teeth with 15HP plus TiO2 nanoparticles and photoactivated by LED-laser caused reduction of the fracture resistance similarly provided by 35HP, 37CP or SP (p>0.05). All bleaching treatments reduced the fracture resistance compared to unbleached teeth (p<0.05).Conclusion:All bleaching protocols reduced the fracture resistance of endodontically-treated teeth, but there were no differences between each other.Objetivo:Avaliar a resistência à fratura de dentes tratados endodonticamente após tratamento clareador usando peroxido de hidrogênio a 15% com nanopartículas de dióxido de titânio (15HPTiO2) fotoativado por LED-laser, em comparação aos protocolos usando peróxido de hidrogênio 35% (35HP), peróxido de carbamida 37% (37CP) ou perborato de sódio (SP).Material e método:Após tratamento endodôntico, 50 incisivos bovinos extraídos foram divididos em 5 grupos (n = 10): G1- sem clareamento; G2- 35HP; G3- 37CP; G4- 15HPTiO2 fotoativado por LED-laser e G5- SP. Nos grupos G2 e G4, o protocolo de clareamento foi aplicado em 4 sessões, com 7 dias de intervalo entre cada sessão. Nos grupos G3 e G5, os materiais foram inseridos na câmara pulpar por 21 dias e trocados a cada 7 dias. Após 21 dias, as coroas foram submetidas à força de compressão com velocidade de 0,5 mm/min, aplicada a 135º em relação ao longo eixo da raiz. empregando máquina de ensaios mecânicos, até a fratura. Os dados foram submetidos aos testes de ANOVA e Tukey (p = 0.05).Resultado:O tratamento clareador em dentes tratados endodonticamente com 15HP e nanopartículas de TiO2 fotoativado por LED-laser proporcionou redução da resistência à fratura semelhante ao 35HP, 37CP ou SP (p>0,05). Todos os tratamentos clareadores reduziram a resistência coronária à fratura quando comparados aos dentes sem tratamento (p<0,05).Conclusão:Todos os protocolos de clareamento reduziram a resistência à fratura dos dentes tratados endodonticamente, sem diferenças estatisticamente significantes entre os grupos.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Estadual Paulista Faculdade de OdontologiaUniv Estadual Paulista Faculdade de OdontologiaUniversidade Estadual Paulista Júlio de Mesquita FilhoUniversidade Estadual Paulista (Unesp)Jordão-Basso, Keren Cristina [UNESP]Andolfatto, Carolina [UNESP]Kuga, Milton Carlos [UNESP]Chávez-Andrade, Gisselle Moraima [UNESP]Faria-Júnior, Norberto Batista de [UNESP]Faria, Gisele [UNESP]Madeira-Neto, Paulo [UNESP]Oliveira-Junior, Osmir Batista de [UNESP]2015-08-06T16:14:39Z2015-08-06T16:14:39Z2014-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article153-157application/pdfhttp://dx.doi.org/10.1590/rou.2014.027Revista de Odontologia da UNESP. Universidade Estadual Paulista Júlio de Mesquita Filho, v. 43, n. 3, p. 153-157, 2014.1807-2577http://hdl.handle.net/11449/12615710.1590/rou.2014.027S1807-25772014000300153S1807-25772014000300153.pdf16275684198117881411074363039082SciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista de Odontologia da UNESPinfo:eu-repo/semantics/openAccess2023-10-17T06:04:33Zoai:repositorio.unesp.br:11449/126157Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-17T06:04:33Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Fracture resistance of endodontically-treated teeth submitted to bleaching treatment with hydrogen peroxide and titanium dioxide nanoparticles photoactivated by LED-laser Resistência à fratura de dentes tratados endodonticamente submetidos a tratamento clareador com peróxido de hidrogênio e nanopartículas de dióxido de titânio fotoativado por LED-laser |
title |
Fracture resistance of endodontically-treated teeth submitted to bleaching treatment with hydrogen peroxide and titanium dioxide nanoparticles photoactivated by LED-laser |
spellingShingle |
Fracture resistance of endodontically-treated teeth submitted to bleaching treatment with hydrogen peroxide and titanium dioxide nanoparticles photoactivated by LED-laser Jordão-Basso, Keren Cristina [UNESP] Nanoparticles peroxides tooth bleaching Nanopartículas peróxidos clareamento dental |
title_short |
Fracture resistance of endodontically-treated teeth submitted to bleaching treatment with hydrogen peroxide and titanium dioxide nanoparticles photoactivated by LED-laser |
title_full |
Fracture resistance of endodontically-treated teeth submitted to bleaching treatment with hydrogen peroxide and titanium dioxide nanoparticles photoactivated by LED-laser |
title_fullStr |
Fracture resistance of endodontically-treated teeth submitted to bleaching treatment with hydrogen peroxide and titanium dioxide nanoparticles photoactivated by LED-laser |
title_full_unstemmed |
Fracture resistance of endodontically-treated teeth submitted to bleaching treatment with hydrogen peroxide and titanium dioxide nanoparticles photoactivated by LED-laser |
title_sort |
Fracture resistance of endodontically-treated teeth submitted to bleaching treatment with hydrogen peroxide and titanium dioxide nanoparticles photoactivated by LED-laser |
author |
Jordão-Basso, Keren Cristina [UNESP] |
author_facet |
Jordão-Basso, Keren Cristina [UNESP] Andolfatto, Carolina [UNESP] Kuga, Milton Carlos [UNESP] Chávez-Andrade, Gisselle Moraima [UNESP] Faria-Júnior, Norberto Batista de [UNESP] Faria, Gisele [UNESP] Madeira-Neto, Paulo [UNESP] Oliveira-Junior, Osmir Batista de [UNESP] |
author_role |
author |
author2 |
Andolfatto, Carolina [UNESP] Kuga, Milton Carlos [UNESP] Chávez-Andrade, Gisselle Moraima [UNESP] Faria-Júnior, Norberto Batista de [UNESP] Faria, Gisele [UNESP] Madeira-Neto, Paulo [UNESP] Oliveira-Junior, Osmir Batista de [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Jordão-Basso, Keren Cristina [UNESP] Andolfatto, Carolina [UNESP] Kuga, Milton Carlos [UNESP] Chávez-Andrade, Gisselle Moraima [UNESP] Faria-Júnior, Norberto Batista de [UNESP] Faria, Gisele [UNESP] Madeira-Neto, Paulo [UNESP] Oliveira-Junior, Osmir Batista de [UNESP] |
dc.subject.por.fl_str_mv |
Nanoparticles peroxides tooth bleaching Nanopartículas peróxidos clareamento dental |
topic |
Nanoparticles peroxides tooth bleaching Nanopartículas peróxidos clareamento dental |
description |
Objective:The aim of this study was evaluate the fracture resistance of endodontically-treated teeth after bleaching treatment using 15% hydrogen peroxide plus titanium dioxide nanoparticles (15HPTiO2) photoactivated by LED-laser, in comparison with protocols using 35% hydrogen peroxide (35HP), 37% carbamide peroxide (37CP) or sodium perborate (SP).Material and method:After endodontic treatment, fifty bovine extracted incisors were divided into five groups (n = 10): G1- without bleaching; G2- 35HP; G3- 37CP; G4- 15HPTiO2 photoactivated by LED-laser and G5- SP. In G2 and G4, the bleaching protocol was applied in 4 sessions, with a 7 day interval between each session. In G3 and G5, the materials were kept in the pulp chamber for 21 days, but replaced every 7 days. After 21 days, the crowns were subjected to compressive load at a cross head speed of 0.5 mm/min, applied at 135° to the long axis of the root using an eletromechanical testing machine, until fracture. The data were submitted to ANOVA and Tukey tests (p = 0.05).Result:The bleaching treatment in endodontically-treated teeth with 15HP plus TiO2 nanoparticles and photoactivated by LED-laser caused reduction of the fracture resistance similarly provided by 35HP, 37CP or SP (p>0.05). All bleaching treatments reduced the fracture resistance compared to unbleached teeth (p<0.05).Conclusion:All bleaching protocols reduced the fracture resistance of endodontically-treated teeth, but there were no differences between each other. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-06-01 2015-08-06T16:14:39Z 2015-08-06T16:14:39Z |
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/rou.2014.027 Revista de Odontologia da UNESP. Universidade Estadual Paulista Júlio de Mesquita Filho, v. 43, n. 3, p. 153-157, 2014. 1807-2577 http://hdl.handle.net/11449/126157 10.1590/rou.2014.027 S1807-25772014000300153 S1807-25772014000300153.pdf 1627568419811788 1411074363039082 |
url |
http://dx.doi.org/10.1590/rou.2014.027 http://hdl.handle.net/11449/126157 |
identifier_str_mv |
Revista de Odontologia da UNESP. Universidade Estadual Paulista Júlio de Mesquita Filho, v. 43, n. 3, p. 153-157, 2014. 1807-2577 10.1590/rou.2014.027 S1807-25772014000300153 S1807-25772014000300153.pdf 1627568419811788 1411074363039082 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista de Odontologia da UNESP |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
153-157 application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual Paulista Júlio de Mesquita Filho |
publisher.none.fl_str_mv |
Universidade Estadual Paulista Júlio de Mesquita Filho |
dc.source.none.fl_str_mv |
SciELO 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_ |
1803046030751563776 |