Avaliação “in vitro” de diferentes técnicas de clareamento de dentes escurecidos por sangue

Detalhes bibliográficos
Autor(a) principal: Gaidarji, Bruna
Data de Publicação: 2019
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Manancial - Repositório Digital da UFSM
dARK ID: ark:/26339/00130000035rb
Texto Completo: http://repositorio.ufsm.br/handle/1/21568
Resumo: This research will present a study that evaluated the effectiveness of three bleaching techniques on blood stained teeth, simulating a dental discoloration after pulpal hemorrhage. It is an in vitro study, in which human teeth were selected from the Human Bank of teeth of the Dentistry School of the Federal University of Santa Maria, and submitted to a human blood staining protocol. After staining, the teeth were randomized and separated into groups (n=10) according to one of three whitening techniques. The first group was submitted to the Walking Bleach technique, using sodium perborate associated with liquid hydrogen peroxide at 20%, applying the mixture to the pulp chamber. The second group was submitted to the Inside/Outside technique, using hydrogen peroxide at 7.5% internally and externally. The third group was submitted to the In-Office bleaching technique, using hydrogen peroxide at 35% internally and externally. The color measurements were performed at five time points: after the staining protocol (T0 - baseline), after one week of bleaching (T1), after two weeks of bleaching (T2), after completion of treatments (T3) and one-week follow-up (T4), using a clinical spectrophotometer (Easyshade Advance 4.0, VITA), which shows the color measurement in numbers, where the coordinates L * a * b * of the color were annotated. The coordinates were inserted into CIELAB and CIEDE2000 the formulas, to calculate the color difference (ΔE*ab and ΔE00, respectively). The color difference (ΔE) was calculated between T1-T0 (1 week of bleaching), T2-T0 (2 weeks of bleaching), T3-T0 (completion of treatments) and T4-T0 (oneweek follow-up). The normal distribution of the data was verified by the Kolmogorov-Smirnov test, and the mean values of ΔE*ab, ΔE00, ΔL*, Δa* and Δb* were submitted to ANOVA and Tukey’s PostHoc tests. Statistical analysis used α=0.05 as significance. The results demonstrated that all bleaching techniques presented similar effectiveness at 1-week followup. The In-Office bleaching technique, presented expressive color change since the first application, as for Walking bleach and Inside/Outside techniques, demonstrated greater bleaching effectiveness from the second week onwards of treatment.
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spelling Avaliação “in vitro” de diferentes técnicas de clareamento de dentes escurecidos por sangue"In vitro" evaluation of different bleaching techniques on blood-stained teethClareamento dentalDescoloração de denteManchas de sanguePerborato de sódioPermeabilidade dentáriaPeróxido de hidrogênioBlood stainsHydrogen peroxideSodium perborateTooth bleachingTooth discolorationTooth permeabilityCNPQ::CIENCIAS DA SAUDE::ODONTOLOGIAThis research will present a study that evaluated the effectiveness of three bleaching techniques on blood stained teeth, simulating a dental discoloration after pulpal hemorrhage. It is an in vitro study, in which human teeth were selected from the Human Bank of teeth of the Dentistry School of the Federal University of Santa Maria, and submitted to a human blood staining protocol. After staining, the teeth were randomized and separated into groups (n=10) according to one of three whitening techniques. The first group was submitted to the Walking Bleach technique, using sodium perborate associated with liquid hydrogen peroxide at 20%, applying the mixture to the pulp chamber. The second group was submitted to the Inside/Outside technique, using hydrogen peroxide at 7.5% internally and externally. The third group was submitted to the In-Office bleaching technique, using hydrogen peroxide at 35% internally and externally. The color measurements were performed at five time points: after the staining protocol (T0 - baseline), after one week of bleaching (T1), after two weeks of bleaching (T2), after completion of treatments (T3) and one-week follow-up (T4), using a clinical spectrophotometer (Easyshade Advance 4.0, VITA), which shows the color measurement in numbers, where the coordinates L * a * b * of the color were annotated. The coordinates were inserted into CIELAB and CIEDE2000 the formulas, to calculate the color difference (ΔE*ab and ΔE00, respectively). The color difference (ΔE) was calculated between T1-T0 (1 week of bleaching), T2-T0 (2 weeks of bleaching), T3-T0 (completion of treatments) and T4-T0 (oneweek follow-up). The normal distribution of the data was verified by the Kolmogorov-Smirnov test, and the mean values of ΔE*ab, ΔE00, ΔL*, Δa* and Δb* were submitted to ANOVA and Tukey’s PostHoc tests. Statistical analysis used α=0.05 as significance. The results demonstrated that all bleaching techniques presented similar effectiveness at 1-week followup. The In-Office bleaching technique, presented expressive color change since the first application, as for Walking bleach and Inside/Outside techniques, demonstrated greater bleaching effectiveness from the second week onwards of treatment.Neste trabalho será apresentado um estudo que avaliou a efetividade de três técnicas de clareamento em dentes manchados por sangue, simulando um escurecimento dental pós hemorragia pulpar. Trata-se de um estudo laboratorial, in vitro, em que dentes humanos provenientes do Banco de Dentes Permanentes Humanos do Curso de Odontologia da Universidade Federal de Santa Maria, foram selecionados e submetidos a um protocolo de manchamento por sangue humano. Após o manchamento, os dentes foram randomizados e separados em grupos (n=10), de acordo com uma das três técnicas clareadoras. O primeiro grupo foi submetido à técnica Walking Bleach, utilizando perborato de sódio associado a peróxido de hidrogênio líquido a 20%, aplicando a mistura na câmara pulpar. O segundo grupo foi submetido à técnica Inside/Ouside, utilizando peróxido de hidrogênio a 7,5% interna e externamente. O terceiro grupo foi submetido à técnica de clareamento de Consultório, utilizando peróxido de hidrogênio a 35% interna e externamente. A leitura da cor dos dentes foi realizada em cinco tempos: após o protocolo de manchamento (T0 – baseline), após uma semana de clareamento (T1), após duas semanas de clareamento (T2), após três semanas de clareamento - conclusão do tratamento (T3) e após uma semana de acompanhamento (T4), por meio de um espectrofotômetro clínico (Easyshade Advance 4.0, VITA), que apresenta a mensuração da cor em números, onde as coordenadas L* a* b* da cor foram anotadas. As coordenadas foram inseridas nas fórmulas CIELAB e CIEDE2000, para calcular a diferença de cor. A diferença de cor (ΔE) foi calculada entre T1-T0 (1 semana de clareamento), T2-T0 (2 semanas de clareamento), T3-T0 (finalização do clareamento), T4-T0 (acompanhamento de uma semana). A distribuição normal dos dados foi verificada pelo teste Kolmogorov-Smirnov, e os valores médios de ΔEab, ΔE00, ΔL*, Δa* e Δb* foram submetidos aos testes ANOVA e Tukey PostHoc. A análise estatística utilizou α=0.05 como significância. Os resultados demonstraram semelhante efetividade de clareamento entre as técnicas no período de acompanhamento de 1 semana. A técnica de clareamento em Consultório apresentou mudança de cor expressiva desde a primeira semana de tratamento, enquanto as técnicas Walking Bleach e Inside/Outside, demonstram maior efetividade no clareamento a partir da segunda semana de tratamento.Universidade Federal de Santa MariaBrasilOdontologiaUFSMPrograma de Pós-Graduação em Ciências OdontológicasCentro de Ciências da SaúdeDurand, Letícia Brandãohttp://lattes.cnpq.br/3552466367011940Susin, Alexandre HenriqueMelo, Tiago Spezia deGaidarji, Bruna2021-07-22T17:49:20Z2021-07-22T17:49:20Z2019-07-11info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://repositorio.ufsm.br/handle/1/21568ark:/26339/00130000035rbporAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2021-07-23T06:01:06Zoai:repositorio.ufsm.br:1/21568Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2021-07-23T06:01:06Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv Avaliação “in vitro” de diferentes técnicas de clareamento de dentes escurecidos por sangue
"In vitro" evaluation of different bleaching techniques on blood-stained teeth
title Avaliação “in vitro” de diferentes técnicas de clareamento de dentes escurecidos por sangue
spellingShingle Avaliação “in vitro” de diferentes técnicas de clareamento de dentes escurecidos por sangue
Gaidarji, Bruna
Clareamento dental
Descoloração de dente
Manchas de sangue
Perborato de sódio
Permeabilidade dentária
Peróxido de hidrogênio
Blood stains
Hydrogen peroxide
Sodium perborate
Tooth bleaching
Tooth discoloration
Tooth permeability
CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA
title_short Avaliação “in vitro” de diferentes técnicas de clareamento de dentes escurecidos por sangue
title_full Avaliação “in vitro” de diferentes técnicas de clareamento de dentes escurecidos por sangue
title_fullStr Avaliação “in vitro” de diferentes técnicas de clareamento de dentes escurecidos por sangue
title_full_unstemmed Avaliação “in vitro” de diferentes técnicas de clareamento de dentes escurecidos por sangue
title_sort Avaliação “in vitro” de diferentes técnicas de clareamento de dentes escurecidos por sangue
author Gaidarji, Bruna
author_facet Gaidarji, Bruna
author_role author
dc.contributor.none.fl_str_mv Durand, Letícia Brandão
http://lattes.cnpq.br/3552466367011940
Susin, Alexandre Henrique
Melo, Tiago Spezia de
dc.contributor.author.fl_str_mv Gaidarji, Bruna
dc.subject.por.fl_str_mv Clareamento dental
Descoloração de dente
Manchas de sangue
Perborato de sódio
Permeabilidade dentária
Peróxido de hidrogênio
Blood stains
Hydrogen peroxide
Sodium perborate
Tooth bleaching
Tooth discoloration
Tooth permeability
CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA
topic Clareamento dental
Descoloração de dente
Manchas de sangue
Perborato de sódio
Permeabilidade dentária
Peróxido de hidrogênio
Blood stains
Hydrogen peroxide
Sodium perborate
Tooth bleaching
Tooth discoloration
Tooth permeability
CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA
description This research will present a study that evaluated the effectiveness of three bleaching techniques on blood stained teeth, simulating a dental discoloration after pulpal hemorrhage. It is an in vitro study, in which human teeth were selected from the Human Bank of teeth of the Dentistry School of the Federal University of Santa Maria, and submitted to a human blood staining protocol. After staining, the teeth were randomized and separated into groups (n=10) according to one of three whitening techniques. The first group was submitted to the Walking Bleach technique, using sodium perborate associated with liquid hydrogen peroxide at 20%, applying the mixture to the pulp chamber. The second group was submitted to the Inside/Outside technique, using hydrogen peroxide at 7.5% internally and externally. The third group was submitted to the In-Office bleaching technique, using hydrogen peroxide at 35% internally and externally. The color measurements were performed at five time points: after the staining protocol (T0 - baseline), after one week of bleaching (T1), after two weeks of bleaching (T2), after completion of treatments (T3) and one-week follow-up (T4), using a clinical spectrophotometer (Easyshade Advance 4.0, VITA), which shows the color measurement in numbers, where the coordinates L * a * b * of the color were annotated. The coordinates were inserted into CIELAB and CIEDE2000 the formulas, to calculate the color difference (ΔE*ab and ΔE00, respectively). The color difference (ΔE) was calculated between T1-T0 (1 week of bleaching), T2-T0 (2 weeks of bleaching), T3-T0 (completion of treatments) and T4-T0 (oneweek follow-up). The normal distribution of the data was verified by the Kolmogorov-Smirnov test, and the mean values of ΔE*ab, ΔE00, ΔL*, Δa* and Δb* were submitted to ANOVA and Tukey’s PostHoc tests. Statistical analysis used α=0.05 as significance. The results demonstrated that all bleaching techniques presented similar effectiveness at 1-week followup. The In-Office bleaching technique, presented expressive color change since the first application, as for Walking bleach and Inside/Outside techniques, demonstrated greater bleaching effectiveness from the second week onwards of treatment.
publishDate 2019
dc.date.none.fl_str_mv 2019-07-11
2021-07-22T17:49:20Z
2021-07-22T17:49:20Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufsm.br/handle/1/21568
dc.identifier.dark.fl_str_mv ark:/26339/00130000035rb
url http://repositorio.ufsm.br/handle/1/21568
identifier_str_mv ark:/26339/00130000035rb
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
Brasil
Odontologia
UFSM
Programa de Pós-Graduação em Ciências Odontológicas
Centro de Ciências da Saúde
publisher.none.fl_str_mv Universidade Federal de Santa Maria
Brasil
Odontologia
UFSM
Programa de Pós-Graduação em Ciências Odontológicas
Centro de Ciências da Saúde
dc.source.none.fl_str_mv reponame:Manancial - Repositório Digital da UFSM
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Manancial - Repositório Digital da UFSM
collection Manancial - Repositório Digital da UFSM
repository.name.fl_str_mv Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)
repository.mail.fl_str_mv atendimento.sib@ufsm.br||tedebc@gmail.com
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