Evaluation of bleaching efficacy, microhardness, and trans-amelodentinal diffusion of a novel bleaching agent for an in-office technique containing hexametaphosphate and fluoride

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorNunes Júnior, Nilson Antônio-
Autor(es): dc.creatorNunes, Gabriel Pereira-
Autor(es): dc.creatorGruba, Amanda Scarpin-
Autor(es): dc.creatorDanelon, Marcelle-
Autor(es): dc.creatorSilva, Lívia Maria Alves Valentim da-
Autor(es): dc.creatorBatista, Gabriella de Farias-
Autor(es): dc.creatorBriso, André Luiz Fraga-
Autor(es): dc.creatorDelbem, Alberto Carlos Botazzo-
Data de aceite: dc.date.accessioned2025-08-21T15:13:33Z-
Data de disponibilização: dc.date.available2025-08-21T15:13:33Z-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2022-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s00784-022-04480-3-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/240825-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/240825-
Descrição: dc.descriptionObjective: This study evaluated in vitro the effects of calcium gluconate (CaGlu), sodium fluoride (NaF), sodium hexametaphosphate (HMP), and NaF/TMP added to a 35% hydrogen peroxide (H2O2) bleaching gel on the color change, enamel hardness, and trans-amelodentinal diffusion. Materials and methods: Enamel discs/bovine dentin (n = 150) were divided according to the bleaching gel: 35% H2O2 (H2O2); 35% H2O2 + 0.1% NaF (H2O2/NaF); 35% H2O2 + 1% HMP (H2O2/HMP); 35% H2O2 + 0.1% NaF + 1% HMP (H2O2/NaF/HMP), and 35% H2O2 + 2% CaGlu (H2O2/Caglu). The bleaching gels were applied three times (40 min/session) at 7-day intervals between each application. Then, color alteration (ΔE), whitening index (ΔWID), percentage of surface hardness loss (% SH), cross-sectional hardness (ΔKHN), and trans-amelodentinal diffusion were determined. Data were submitted for analysis of variance (ANOVA), followed by the Student–Newman–Keuls test (p < 0.05). Results: All bleaching gels showed significant color changes after treatment (p < 0.001). ΔE and ΔWID were similar among the evaluated gels. Mineral loss (% SH and ΔKHN) and trans-amelodentinal diffusion of hydrogen peroxide were lower for H2O2/NaF/HMP; the H2O2/CaGlu group presented the highest values about the other groups (p < 0.001). Conclusion: It is possible to conclude that the addition of NaF/HMP to the in-office bleaching agent did not interfere with the bleaching efficacy and reduced enamel demineralization and H2O2 diffusion. Clinical significance: The association of NaF/HMP to the bleaching gel can be used as a novel approach for minimizing the adverse effects of H2O2 by-products and with similar clinical efficacy.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionDepartment of Preventive and Restorative Dentistry Araçatuba School of Dentistry São Paulo State University—UNESP, Rua José Bonifácio 1193, SP-
Descrição: dc.descriptionDepartment of Preventive and Restorative Dentistry Araçatuba School of Dentistry São Paulo State University—UNESP, Rua José Bonifácio 1193, SP-
Descrição: dc.descriptionCNPq: PQ 312934/2018-1-
Descrição: dc.descriptionCAPES: PROCAD/2013 - 88881.068437/2014–2001-
Formato: dc.format5071-5078-
Idioma: dc.languageen-
Relação: dc.relationClinical Oral Investigations-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectEsthetics-
Palavras-chave: dc.subjectPeroxides-
Palavras-chave: dc.subjectPhosphates-
Palavras-chave: dc.subjectSodium fluoride-
Palavras-chave: dc.subjectTooth bleaching agents-
Palavras-chave: dc.subjectTooth demineralization-
Título: dc.titleEvaluation of bleaching efficacy, microhardness, and trans-amelodentinal diffusion of a novel bleaching agent for an in-office technique containing hexametaphosphate and fluoride-
Tipo de arquivo: dc.typelivro digital-
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