| Texto completo | |
| Autor(es): |
Cardoso Bezerra, Savio Jose
;
Lira Viana, Itallo Emidio
;
Aoki, Idalina Vieira
;
Duarte, Simone
;
Hara, Anderson Takeo
;
Scaramucci, Tais
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Applied Oral Science; v. 30, p. 12-pg., 2022-01-01. |
| Resumo | |
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 x 5 mm) were obtained from bovine teeth. The specimens (n=10) had their surfaces divided into two halves (5 mm x 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 (alpha=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. (AU) | |
| Processo FAPESP: | 17/14691-6 - Efeito anti-erosivo e anti-abrasivo de uma película híbrida associada ou não ao fluoreto de sódio ou fluoreto de sódio mais cloreto de estanho em esmalte e dentina |
| Beneficiário: | Taís Scaramucci Forlin |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 18/06251-9 - Efeito de uma película híbrida associada ou não ao fluoreto de sódio ou fluoreto de sódio mais cloreto de estanho frente a um desafio cariogênico em esmalte |
| Beneficiário: | Sávio José Cardoso Bezerra |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Doutorado |