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In-vitro evaluation of the anti-cariogenic effect of a hybrid coating associated with encapsulated sodium fluoride and stannous chloride in nanoclays on enamel
BEZERRA, Sávio José Cardoso; VIANA, Ítallo Emídio Lira; AOKI, Idalina Vieira; DUARTE, Simone; HARA, Anderson Takeo; SCARAMUCCI, Taís.
Afiliación
  • BEZERRA, Sávio José Cardoso; Universidade de São Paulo. Faculdade de Odontologia. Departamento de Dentística. São Paulo. BR
  • VIANA, Ítallo Emídio Lira; Universidade de São Paulo. Faculdade de Odontologia. Departamento de Dentística. São Paulo. BR
  • AOKI, Idalina Vieira; Universidade de São Paulo. Escola Politécnica. Departamento de Engenharia Química. São Paulo. BR
  • DUARTE, Simone; Indiana University. School of Dentistry, Operative Dentistry and Dental Public Health. Department of Cariology. Indianapolis. US
  • HARA, Anderson Takeo; Indiana University. School of Dentistry, Operative Dentistry and Dental Public Health. Department of Cariology. Indianapolis. US
  • SCARAMUCCI, Taís; Universidade de São Paulo. Faculdade de Odontologia. Departamento de Dentística. São Paulo. BR
J. appl. oral sci ; J. appl. oral sci;30: e20210643, 2022. tab, graf
Article en En | LILACS-Express | LILACS | ID: biblio-1375708
Biblioteca responsable: BR1.1
ABSTRACT
Abstract Objective The aim of this study is to test, in vitro, the anti-cariogenic effect of experimental hybrid coatings, with nano clays of halloysite or bentonite, loaded with sodium fluoride or with a combination of sodium fluoride and stannous chloride, respectively. Methodology The varnish Fluor Protector (1,000 ppm of F-) was used as positive control and no treatment was the negative control. Enamel specimens (5 mm × 5 mm) were obtained from bovine teeth. The specimens (n=10) had their surfaces divided into two halves (5 mm × 2.5 mm each), in which one half received one of the treatments (Hybrid; Hybrid + NaF; Hybrid + NaF + SnCl2; Hybrid + NaF Loaded; Hybrid + NaF + SnCl2 Loaded). The specimens were submitted to a cariogenic challenge using a biofilm model (S. mutans UA159, for 5 days). Enamel surfaces both under and adjacent to the treated area were analyzed for mineral loss and lesion depth, by transverse microradiography. The pH of the medium was measured twice a day, and the fluoride release was analyzed. Additional specimens were submitted to confocal analysis. Results Data were statistically analyzed by two-way ANOVA followed by Tukey test (α=0.05). None of hybrid groups were able to reduce the lesion depth; the Hybrid + NaF group, however, was able to reduce mineral loss differing from the negative control (p=0.008). The groups showed no significant difference in the pH measurement and fluoride release. Confocal analysis confirmed that for all groups the biofilm growth was similar. Conclusion None of the hybrid groups reduced lesion depth, but the Hybrid + NaF group was able to promote protection against mineral loss.
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Texto completo: 1 Colección: 01-internacional Base de datos: LILACS Tipo de estudio: Risk_factors_studies Idioma: En Revista: J. appl. oral sci Asunto de la revista: ODONTOLOGIA Año: 2022 Tipo del documento: Article / Project document País de afiliación: Brasil / Estados Unidos Pais de publicación: Brasil
Texto completo
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Imprimir
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Texto completo: 1 Colección: 01-internacional Base de datos: LILACS Tipo de estudio: Risk_factors_studies Idioma: En Revista: J. appl. oral sci Asunto de la revista: ODONTOLOGIA Año: 2022 Tipo del documento: Article / Project document País de afiliación: Brasil / Estados Unidos Pais de publicación: Brasil