Effectiveness of violet LED dental bleaching compared to 35% hydrogen peroxide: An in vitro study
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
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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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 |
|
_version_ |
1808129394623905792 |