Effectiveness of violet LED dental bleaching compared to 35% hydrogen peroxide: An in vitro study

Detalhes bibliográficos
Autor(a) principal: Leite, Juliana Squizatto
Data de Publicação: 2022
Outros Autores: Gonçalves, Cristiane Orizio, Hortkoff, Diego Rafael de Andrade, Gomes, Giovana Mongruel, Rastelli, Alessandra Nara de Souza [UNESP], Gomes, João Carlos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.pdpdt.2022.102978
http://hdl.handle.net/11449/240708
Resumo: Aim: This in vitro study assessed the efficacy and adverse effects of violet LED bleaching with or without bleaching agents. Material and Methods: Dental blocks (n=40) were randomly distributed in 4 groups: violet LED (VL), 35% hydrogen peroxide (HP35), the association of hydrogen peroxide 35% with violet LED (VHP35) and the association of hydrogen peroxide 35% with blue LED (BHP35). Specimens were analyzed for Vickers microhardness initially, immediately after and seven days after ending bleaching protocol. The color analysis of the specimens was evaluated for bleaching effectiveness (ΔE2000, ΔE1976) and whiteness index (ΔWID) with EasyShade spectrophotometer, before bleaching protocol and seven days after ending bleaching protocol. The mineral composition of the enamel was evaluated by percentage of phosphorus and calcium on the enamel surface with energy dispersive spectroscopy (EDS). The color and the microhardness data were analyzed using one-way ANOVA with post-hoc Tukey (α=0.05). Results: The microhardness test showed a difference among the groups only immediately after the completion of the protocol, in which there was a reduction in the value for the groups HP35 from 277,36 ± 21,56 to 198,76 ±32,2 (p<0,01); and BHP35 from 261,14 ± 36,01 to 212,66 ± 25,99 (p<0,01), but the microhardness was reestablished after seven days. Regarding EDS analysis, a reduction in the mineral percentage immediately after bleaching with the use of VL was observed, however, after seven days it was reestablished. Regarding the color analysis, there was no difference among the groups evaluated. Conclusions: The use of VL was effective as a dental bleaching tool and did not adversely affect the enamel surface after seven days of the ending of the bleaching protocol.
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spelling Effectiveness of violet LED dental bleaching compared to 35% hydrogen peroxide: An in vitro studyBleaching agentsLEDTooth bleachingAim: This in vitro study assessed the efficacy and adverse effects of violet LED bleaching with or without bleaching agents. Material and Methods: Dental blocks (n=40) were randomly distributed in 4 groups: violet LED (VL), 35% hydrogen peroxide (HP35), the association of hydrogen peroxide 35% with violet LED (VHP35) and the association of hydrogen peroxide 35% with blue LED (BHP35). Specimens were analyzed for Vickers microhardness initially, immediately after and seven days after ending bleaching protocol. The color analysis of the specimens was evaluated for bleaching effectiveness (ΔE2000, ΔE1976) and whiteness index (ΔWID) with EasyShade spectrophotometer, before bleaching protocol and seven days after ending bleaching protocol. The mineral composition of the enamel was evaluated by percentage of phosphorus and calcium on the enamel surface with energy dispersive spectroscopy (EDS). The color and the microhardness data were analyzed using one-way ANOVA with post-hoc Tukey (α=0.05). Results: The microhardness test showed a difference among the groups only immediately after the completion of the protocol, in which there was a reduction in the value for the groups HP35 from 277,36 ± 21,56 to 198,76 ±32,2 (p<0,01); and BHP35 from 261,14 ± 36,01 to 212,66 ± 25,99 (p<0,01), but the microhardness was reestablished after seven days. Regarding EDS analysis, a reduction in the mineral percentage immediately after bleaching with the use of VL was observed, however, after seven days it was reestablished. Regarding the color analysis, there was no difference among the groups evaluated. Conclusions: The use of VL was effective as a dental bleaching tool and did not adversely affect the enamel surface after seven days of the ending of the bleaching protocol.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Departament of Dentistry State University of Ponta Grossa - UEPG, 4748 Av. General Carlos Cavalcanti, Uvaranas, PRDepartament of Restorative Dentistry São Paulo State University – UNESP, SPDepartament of Restorative Dentistry São Paulo State University – UNESP, SPCAPES: 001Universidade Estadual de Ponta Grossa (UEPG)Universidade Estadual Paulista (UNESP)Leite, Juliana SquizattoGonçalves, Cristiane OrizioHortkoff, Diego Rafael de AndradeGomes, Giovana MongruelRastelli, Alessandra Nara de Souza [UNESP]Gomes, João Carlos2023-03-01T20:29:18Z2023-03-01T20:29:18Z2022-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.pdpdt.2022.102978Photodiagnosis and Photodynamic Therapy, v. 40.1873-15971572-1000http://hdl.handle.net/11449/24070810.1016/j.pdpdt.2022.1029782-s2.0-85136668201Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhotodiagnosis and Photodynamic Therapyinfo:eu-repo/semantics/openAccess2023-03-01T20:29:18Zoai:repositorio.unesp.br:11449/240708Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:07:42.988933Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Effectiveness of violet LED dental bleaching compared to 35% hydrogen peroxide: An in vitro study
title Effectiveness of violet LED dental bleaching compared to 35% hydrogen peroxide: An in vitro study
spellingShingle Effectiveness of violet LED dental bleaching compared to 35% hydrogen peroxide: An in vitro study
Leite, Juliana Squizatto
Bleaching agents
LED
Tooth bleaching
title_short Effectiveness of violet LED dental bleaching compared to 35% hydrogen peroxide: An in vitro study
title_full Effectiveness of violet LED dental bleaching compared to 35% hydrogen peroxide: An in vitro study
title_fullStr Effectiveness of violet LED dental bleaching compared to 35% hydrogen peroxide: An in vitro study
title_full_unstemmed Effectiveness of violet LED dental bleaching compared to 35% hydrogen peroxide: An in vitro study
title_sort Effectiveness of violet LED dental bleaching compared to 35% hydrogen peroxide: An in vitro study
author Leite, Juliana Squizatto
author_facet Leite, Juliana Squizatto
Gonçalves, Cristiane Orizio
Hortkoff, Diego Rafael de Andrade
Gomes, Giovana Mongruel
Rastelli, Alessandra Nara de Souza [UNESP]
Gomes, João Carlos
author_role author
author2 Gonçalves, Cristiane Orizio
Hortkoff, Diego Rafael de Andrade
Gomes, Giovana Mongruel
Rastelli, Alessandra Nara de Souza [UNESP]
Gomes, João Carlos
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual de Ponta Grossa (UEPG)
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Leite, Juliana Squizatto
Gonçalves, Cristiane Orizio
Hortkoff, Diego Rafael de Andrade
Gomes, Giovana Mongruel
Rastelli, Alessandra Nara de Souza [UNESP]
Gomes, João Carlos
dc.subject.por.fl_str_mv Bleaching agents
LED
Tooth bleaching
topic Bleaching agents
LED
Tooth bleaching
description Aim: This in vitro study assessed the efficacy and adverse effects of violet LED bleaching with or without bleaching agents. Material and Methods: Dental blocks (n=40) were randomly distributed in 4 groups: violet LED (VL), 35% hydrogen peroxide (HP35), the association of hydrogen peroxide 35% with violet LED (VHP35) and the association of hydrogen peroxide 35% with blue LED (BHP35). Specimens were analyzed for Vickers microhardness initially, immediately after and seven days after ending bleaching protocol. The color analysis of the specimens was evaluated for bleaching effectiveness (ΔE2000, ΔE1976) and whiteness index (ΔWID) with EasyShade spectrophotometer, before bleaching protocol and seven days after ending bleaching protocol. The mineral composition of the enamel was evaluated by percentage of phosphorus and calcium on the enamel surface with energy dispersive spectroscopy (EDS). The color and the microhardness data were analyzed using one-way ANOVA with post-hoc Tukey (α=0.05). Results: The microhardness test showed a difference among the groups only immediately after the completion of the protocol, in which there was a reduction in the value for the groups HP35 from 277,36 ± 21,56 to 198,76 ±32,2 (p<0,01); and BHP35 from 261,14 ± 36,01 to 212,66 ± 25,99 (p<0,01), but the microhardness was reestablished after seven days. Regarding EDS analysis, a reduction in the mineral percentage immediately after bleaching with the use of VL was observed, however, after seven days it was reestablished. Regarding the color analysis, there was no difference among the groups evaluated. Conclusions: The use of VL was effective as a dental bleaching tool and did not adversely affect the enamel surface after seven days of the ending of the bleaching protocol.
publishDate 2022
dc.date.none.fl_str_mv 2022-12-01
2023-03-01T20:29:18Z
2023-03-01T20:29:18Z
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/10.1016/j.pdpdt.2022.102978
Photodiagnosis and Photodynamic Therapy, v. 40.
1873-1597
1572-1000
http://hdl.handle.net/11449/240708
10.1016/j.pdpdt.2022.102978
2-s2.0-85136668201
url http://dx.doi.org/10.1016/j.pdpdt.2022.102978
http://hdl.handle.net/11449/240708
identifier_str_mv Photodiagnosis and Photodynamic Therapy, v. 40.
1873-1597
1572-1000
10.1016/j.pdpdt.2022.102978
2-s2.0-85136668201
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Photodiagnosis and Photodynamic Therapy
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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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