Atenção: Todas as denúncias são sigilosas e sua identidade será preservada.
Os campos nome e e-mail são de preenchimento opcional
Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.contributor | Universidade Estadual Paulista (Unesp) | - |
Autor(es): dc.creator | Leandrin, Thais P. [UNESP] | - |
Autor(es): dc.creator | Alencar, Cristiane M. [UNESP] | - |
Autor(es): dc.creator | Victorino, Keli R. [UNESP] | - |
Autor(es): dc.creator | Dantas, Andréa Ar [UNESP] | - |
Autor(es): dc.creator | Lima, Reinaldo O. [UNESP] | - |
Autor(es): dc.creator | Martins, Júlia C [UNESP] | - |
Autor(es): dc.creator | Zaniboni, Joissi F. [UNESP] | - |
Autor(es): dc.creator | de Campos, Edson A. [UNESP] | - |
Autor(es): dc.creator | Kuga, Milton C. [UNESP] | - |
Data de aceite: dc.date.accessioned | 2022-02-22T00:31:43Z | - |
Data de disponibilização: dc.date.available | 2022-02-22T00:31:43Z | - |
Data de envio: dc.date.issued | 2020-12-11 | - |
Data de envio: dc.date.issued | 2020-12-11 | - |
Data de envio: dc.date.issued | 2020-05-01 | - |
Fonte completa do material: dc.identifier | http://dx.doi.org/10.5005/jp-journals-10024-2831 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/11449/200792 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/11449/200792 | - |
Descrição: dc.description | AIM: To evaluate the effect of two antioxidant formulations (sodium ascorbate and α-tocopherol) on fracture resistance of endodontically treated teeth. MATERIALS AND METHODS: Sixty human premolars were endodontically treated and divided into six groups (n = 10): G1 (negative control)-unbleached and restored with composite resin; G2 (positive control)-bleached in three sessions, using hydrogen peroxide (15 H2O2) plus titanium dioxide (TiO2) nanoparticles, photoactivated by LED laser system and restored with composite resin; G3-bleaching similar to G2, after the use of 10% sodium ascorbate gel for 24 hours and restored with composite resin; G4-similar to G3, but with the use of 10% sodium ascorbate solution and restored with composite resin; G5 and G6-similar to G3, but with the use of 10% α-tocopherol in alcohol or carbopol, respectively, and was also restored. A mechanical fracture resistance test was performed and the Kruskal-Wallis test was used to evaluate the results (α = 0.05). RESULTS: No statistical difference was observed in fracture resistance between groups (p > 0.05). Regarding the antioxidant and pharmaceutical formulation applied, no statistical difference was detected in any comparison (p > 0.05). The frequency of fractures considered favorable was higher in G1 and G3 compared to the other groups. CONCLUSION: The endodontically treated teeth bleached with 15 H2O2 plus TiO2 nanoparticles and photoactivated with the LED laser did not decrease the fracture resistance and the use of sodium ascorbate or α-tocopherol did not increase the crown fracture resistance. CLINICAL SIGNIFICANCE: The literature reports a significant reduction in the bond strength of restorations on the bleached dentin. Therefore, the use of antioxidant agents may have a promising effect on fracture resistance of endodontically treated teeth. | - |
Descrição: dc.description | Department of Restorative Dentistry Araraquara Dental School UNESP-Univ Estadual Paulista | - |
Descrição: dc.description | Department of Restorative Dentistry Araraquara Dental School UNESP-Univ Estadual Paulista | - |
Formato: dc.format | 481-485 | - |
Idioma: dc.language | en | - |
Relação: dc.relation | The journal of contemporary dental practice | - |
???dc.source???: dc.source | Scopus | - |
Palavras-chave: dc.subject | Antioxidants | - |
Palavras-chave: dc.subject | Hydrogen peroxide | - |
Palavras-chave: dc.subject | Sodium ascorbate Tooth bleaching. | - |
Palavras-chave: dc.subject | α-Tocopherol | - |
Título: dc.title | Is α-Tocopherol or Sodium Ascorbate Effective as Antioxidant on Fracture Resistance of Bleached Teeth? | - |
Tipo de arquivo: dc.type | livro digital | - |
Aparece nas coleções: | Repositório Institucional - Unesp |
O Portal eduCAPES é oferecido ao usuário, condicionado à aceitação dos termos, condições e avisos contidos aqui e sem modificações. A CAPES poderá modificar o conteúdo ou formato deste site ou acabar com a sua operação ou suas ferramentas a seu critério único e sem aviso prévio. Ao acessar este portal, você, usuário pessoa física ou jurídica, se declara compreender e aceitar as condições aqui estabelecidas, da seguinte forma: