Effect of non-vital tooth bleaching photoactivated with blue or violet LED on color and microhardness

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de Mato Grosso do Sul (UFMS)-
Autor(es): dc.contributorUniv Fed Juiz de Fora-
Autor(es): dc.creatorAlmeida, Eran Nair Mesquita de-
Autor(es): dc.creatorCosta, Joatan Lucas de Sousa Gomes-
Autor(es): dc.creatorBesegato, Joao Felipe-
Autor(es): dc.creatorSilva, Aryvelto Miranda-
Autor(es): dc.creatorManzoli, Tatiane Miranda-
Autor(es): dc.creatorVitoria, Matheus Sousa-
Autor(es): dc.creatorAndrade, Marcelo Ferrarezi de-
Autor(es): dc.creatorKuga, Milton Carlos-
Data de aceite: dc.date.accessioned2025-08-21T17:13:35Z-
Data de disponibilização: dc.date.available2025-08-21T17:13:35Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-04-21-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.pdpdt.2023.103561-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/245644-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/245644-
Descrição: dc.descriptionBackground: To evaluate the efficacy of dental bleaching protocols using 35% hydrogen peroxide photoactivated with violet LED on color and microhardness of endodontically treated teeth. Methods: Forty specimens were selected and randomized into 4 groups (n = 10): C -Control, HP -35% hydrogen peroxide, HP + BL -35% hydrogen peroxide + blue LED, HP + VL -35% hydrogen peroxide + violet LED. Three bleaching sessions were performed for each group. Color analysis was performed 7 days after each bleaching session. Two-way repeated measure ANOVA and Bonferroni test were used to evaluate the effect of different bleaching protocols and evaluation times on the dependent variables (Delta E and Delta L). Dentin microhardness was measured 24 h after the third bleaching session. Data were evaluated by ANOVA and Tukey's test at a signifi-cance level of 5%. Results: Differences on Delta E and Delta L were verified after the first and second bleaching sessions (p < 0.05) and showed stability after the third one, for all the groups. No differences were observed among HP, HP + BL, and HP + VL groups, regardless of the evaluation time (p > 0.05). HP and C showed the greatest and smallest reduction in dentin microhardness (p < 0.05), respectively. No difference between HP + BL and HP + VL pro-tocols (P > 0.05) was observed. Conclusions: High concentration hydrogen peroxide (35%) photoactivated with violet LED bleached endodonti-cally treated teeth effectively. However, the same protocol negatively affected the dentin microhardness, but not in the same level of 35% HP solely used.-
Descrição: dc.descriptionSao Paulo State Univ UNESP, Sch Dent, Dept Restorat Dent, Araraquara, SP, Brazil-
Descrição: dc.descriptionFed Univ Mato Grosso Sul UFMS, Sch Dent, Campo Grande, MS, Brazil-
Descrição: dc.descriptionUniv Fed Juiz de Fora, Dept Dent, Campus Governador Valadares UFJF GV, Governador Valadares, MG, Brazil-
Descrição: dc.descriptionSao Paulo State Univ UNESP, Sch Dent, Dept Restorat Dent, Araraquara, SP, Brazil-
Formato: dc.format5-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier B.V.-
Relação: dc.relationPhotodiagnosis And Photodynamic Therapy-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectEndodontics-
Palavras-chave: dc.subjectDental bleaching-
Palavras-chave: dc.subjectHydrogen peroxide-
Palavras-chave: dc.subjectLED-
Palavras-chave: dc.subjectMicrohardness-
Palavras-chave: dc.subjectviolet-
Título: dc.titleEffect of non-vital tooth bleaching photoactivated with blue or violet LED on color and microhardness-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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