In vitro evaluation of the effect of antioxidants on the bond strength of bleached teeth

Autores

  • Matheus de França Perazzo Universidade Federal de Minas Gerais
  • Isabel Cristina da Silva Medeiros Wons Faculdades Integradas de Patos
  • Hipácia Fayame Clares Alves Instituto Cearense de Especialidades Odontológicas
  • Jamila Leal dos Santos Marques Universidade Federal da Paraíba
  • Ana Isabella Arruda Meira Ribeiro Universidade Estadual da Paraíba
  • Katia Simone Alves dos Santos Universidade Estadual da Paraíba

Resumo

Objective: To evaluate the in vitro effect of antioxidants on the bond strength between composite resin and enamel subjected to bleaching agents. Methods: Nineteen sound human molars had their roots sectioned, while their surfaces were flattened and filled with composite resin to produce the specimens, which were then divided into seven groups: G1 – unbleached and without antioxidant (control); G2 – 36% carbamide peroxide; G3 – 36% carbamide peroxide and 10% ascorbic acid solution; G4 – 36% carbamide peroxide and 10% ascorbic acid gel; G5 – 16% carbamide peroxide; G6 – 16% carbamide peroxide and 10% ascorbic acid solution; and G7 – 16% carbamide peroxide and 10% ascorbic acid gel. The results of microtensile strength were submitted to an analysis of variance (ANOVA) and Tukey’s test, with a significance level of 5%. Results: The bond strength between composite resin and enamel was not affected after the use of bleaching agents. In addition, ascorbic acid did not appear to neutralize the oxidative effects of these agents, given that group 3 showed the lowest mean of bond strength (13.85 MPa). In other groups, the mean of bond strength ranged from 24.06 MPa to 32.02 MPa, with no significant differences when compared to the control. Conclusion: The presence of ascorbic acid immediately after bleaching did not increase the bond strength between the resin and the enamel surface.

Uniterms: Tooth bleaching. Antioxidants. Ascorbic acid. Dental enamel. Composite resins.

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Biografia do Autor

Matheus de França Perazzo, Universidade Federal de Minas Gerais

Doutorando em Odontopediatria, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brasil.

Isabel Cristina da Silva Medeiros Wons, Faculdades Integradas de Patos

Especialista em Ortodontia e Ortopedia Funcional dos Maxilares, Faculdades Integradas de Patos (FIP), Patos, PB, Brasil.

Hipácia Fayame Clares Alves, Instituto Cearense de Especialidades Odontológicas

Especialista em Prótese Dentária, Instituto Cearense de Especialidades Odontológicas (ICEO), Fortaleza, CE, Brasil.

Jamila Leal dos Santos Marques, Universidade Federal da Paraíba

Mestre em Odontologia Preventiva e Infantil, Faculdade de Odontologia, Universidade Federal da Paraíba (UFPB), João Pessoa, PB, Brasil.

Ana Isabella Arruda Meira Ribeiro, Universidade Estadual da Paraíba

Professora Adjunta, Faculdade de Odontologia, Universidade Estadual da Paraíba (UEPB), Campina Grande, PB, Brasil.

Katia Simone Alves dos Santos, Universidade Estadual da Paraíba

Professora Associada, Faculdade de Odontologia, Universidade Estadual da Paraíba (UEPB), Campina Grande, PB, Brasil.

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Como Citar

Perazzo, M. de F., Wons, I. C. da S. M., Alves, H. F. C., Marques, J. L. dos S., Ribeiro, A. I. A. M., & dos Santos, K. S. A. (2017). In vitro evaluation of the effect of antioxidants on the bond strength of bleached teeth. Arquivos Em Odontologia, 53. Recuperado de https://periodicos.ufmg.br/index.php/arquivosemodontologia/article/view/3731

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