The influence of violet LED application time on the esthetic efficacy and cytotoxicity of a 35% H2O2 bleaching gel

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorRibeiro, Rafael Antonio de Oliveira-
Autor(es): dc.creatorPeruchi, Victória-
Autor(es): dc.creatorFernandes, Lídia de Oliveira-
Autor(es): dc.creatorAnselmi, Caroline-
Autor(es): dc.creatorSoares, Igor Paulino Mendes-
Autor(es): dc.creatorHebling, Josimeri-
Autor(es): dc.creatorCosta, Carlos Alberto de Souza-
Data de aceite: dc.date.accessioned2025-08-21T17:33:42Z-
Data de disponibilização: dc.date.available2025-08-21T17:33:42Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.pdpdt.2022.103069-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/247677-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/247677-
Descrição: dc.descriptionObjective: To assess the potential influence of violet LED (V-LED) application time on the esthetic efficacy and cytotoxicity of a 35% H2O2 bleaching gel. Methodology: Stained and standardized enamel/dentin discs were subjected to one in-office tooth bleaching session (45 min), and the gel was either irradiated or not with V-LED. Thus, the following groups were established (n = 8): G1: No treatment (negative control, NC); G2: 35% H2O2 (positive control, PC); G3: 35%H2O2 + V-LED/15 min; G4: 35%H2O2 + V-LED/30 min; G5: 35%H2O2 + V-LED/45 min. First, esthetic efficacy was assessed (ΔE00 and ΔWI). Discs assembled in artificial pulp chambers were subjected to the same bleaching treatments. Then, the extracts (culture medium + diffused bleaching gel components) were collected and applied to MDPC-23 pulp cells, which were analyzed for viability (Live/Dead, MTT) and oxidative stress (OxS). The amount of H2O2 in the extracts was also determined (leuco crystal-violet/peroxidase). The data were subjected to ANOVA/Tukey at a 5% significance level. Results: Although esthetic efficacy did not differ among the irradiated groups (G3, G4, and G5) (p > 0.05), their results were higher than in G2 (PC; p < 0.05). In the irradiated groups, the cell viability and OxS as well as the amount of H2O2 in the extracts were statistically similar to G2 (PC), regardless of irradiation time (p > 0.05). Conclusion: Although V-LED improves the esthetic outcome of in-office tooth bleaching, increasing irradiation time does not effect the color changes and cytotoxicity of this professional therapy.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics School of Dentistry São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Restorative Dentistry School of Dentistry São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Morphology and Pediatric Dentistry School of Dentistry São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Physiology and Pathology School of Dentistry São Paulo State University (UNESP), Araraquara, Rua Humaitá, 1680-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics School of Dentistry São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Restorative Dentistry School of Dentistry São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Morphology and Pediatric Dentistry School of Dentistry São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Physiology and Pathology School of Dentistry São Paulo State University (UNESP), Araraquara, Rua Humaitá, 1680-
Descrição: dc.descriptionFAPESP: 2020/09095-8-
Descrição: dc.descriptionFAPESP: 2021/01184-4-
Descrição: dc.descriptionCNPq: 302047/2019-0-
Descrição: dc.descriptionCNPq: 408721/2018-9-
Idioma: dc.languageen-
Relação: dc.relationPhotodiagnosis and Photodynamic Therapy-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCytotoxicity-
Palavras-chave: dc.subjectOdontoblasts-
Palavras-chave: dc.subjectTooth bleaching-
Palavras-chave: dc.subjectViolet LED-
Título: dc.titleThe influence of violet LED application time on the esthetic efficacy and cytotoxicity of a 35% H2O2 bleaching gel-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.