Effectiveness and color stability of non-vital dental bleaching photoactivated by violet LED on blood-stained teeth

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorFederal University of Juiz de Fora (UFJF)-
Autor(es): dc.contributorUniversidade Federal de Mato Grosso do Sul (UFMS)-
Autor(es): dc.creatorde Almeida, Eran Nair Mesquita-
Autor(es): dc.creatorSilva, Aryvelto Miranda-
Autor(es): dc.creatorBesegato, João Felipe-
Autor(es): dc.creatorde Sousa Gomes Costa, Joatan Lucas-
Autor(es): dc.creatorManzoli, Tatiane Miranda-
Autor(es): dc.creatorde Andrade, Marcelo Ferrarezi-
Autor(es): dc.creatorKuga, Milton Carlos-
Data de aceite: dc.date.accessioned2025-08-21T22:05:23Z-
Data de disponibilização: dc.date.available2025-08-21T22:05:23Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-06-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.pdpdt.2023.103329-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/248347-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/248347-
Descrição: dc.descriptionBackground: Few studies have investigated the effect of violet LED irradiation associated or not with bleaching agents on blood-stained teeth. This in vitro study aimed to evaluate the whitening efficacy and color stability of non-vital dental bleaching using 35% hydrogen peroxide (HP) photoactivated with violet LED (VL) compared to 35% HP alone and 35% HP photoactivated with blue LED (BL). Methods: Fifty bovine dental crowns were used to obtain specimens of 5 × 5 × 2 mm. After selection based on a previous colorimetric analysis, the specimens were blood-stained and randomly assigned into five groups (n = 10): control (no treatment); 35% HP, 35% HP/BL; 35% HP/VL; and VL. Three bleaching sessions were performed and the colorimetric analysis (∆Eab, ∆L, and ∆WID) was recorded after 7 days, 30 days, and 9 months of the last bleaching session. Two-way repeated measures ANOVA followed by Bonferroni post-hoc test was used at a significance level of 5%. Results: 35% HP, 35% HP/BL, and 35% HP/VL showed higher values of ∆Eab, ∆L, e ∆WID (P < 0.05), without intra- and intergroup differences (P > 0.05). C and VL were similar in all the evaluation times (P > 0.05), showing lower values of ∆Eab, ∆L, and ∆WID (P < 0.05). Conclusions: 35% HP/VL can be a viable alternative for dental bleaching in endodontically-treated teeth, showing bleaching efficacy similar to 35% HP solely used, even after a 9-month follow-up. VL used alone was not effective to bleach blood-stained teeth.-
Descrição: dc.descriptionDepartment of Restorative Dentistry School of Dentistry Araraquara São Paulo State University – UNESP, SP-
Descrição: dc.descriptionDepartment of Dentistry Federal University of Juiz de Fora (UFJF), Campus Governador Valadares, MG-
Descrição: dc.descriptionSchool of Dentistry Federal University of Mato Grosso do Sul (UFMS), MS-
Descrição: dc.descriptionDepartment of Restorative Dentistry School of Dentistry Araraquara São Paulo State University – UNESP, SP-
Idioma: dc.languageen-
Relação: dc.relationPhotodiagnosis and Photodynamic Therapy-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBlue LED-
Palavras-chave: dc.subjectColor change-
Palavras-chave: dc.subjectDental bleaching-
Palavras-chave: dc.subjectHydrogen peroxide-
Palavras-chave: dc.subjectViolet LED-
Título: dc.titleEffectiveness and color stability of non-vital dental bleaching photoactivated by violet LED on blood-stained teeth-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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