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Utilize este identificador para citar ou criar um link para este item: http://acervodigital.unesp.br/handle/11449/14988
Título: 
In vitro assessment of an experimental coat applied over fluoride varnishes
Autor(es): 
Instituição: 
  • Universidade Estadual Paulista (UNESP)
  • Universidade de São Paulo (USP)
ISSN: 
1678-7757
Financiador: 
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Número do financiamento: 
FAPESP: 04/00538-1
Resumo: 
Objective: The time of contact between the product and enamel surface is important in ensuring the efficacy of fluoride varnishes. Thus, some alternatives could avoid fluoride loss to saliva and improve the anticariogenic action of the product. This study evaluated the effect of an experimental coat on the anticariogenic action of fluoride varnishes. Material and Methods: Enamel bovine blocks were selected by evaluating surface microhardness and randomized into five groups (n=24): placebo, Duraphat (TM), Duraphat (TM) with coat, Duofluorid (TM) and Duofluorid (TM) with coat. Twelve blocks from each group were used to analyze calcium fluoride (CaF(2)) formed on enamel after treatment. The other 12 blocks were subjected to pH cycling for 7 days. The varnishes were kept on enamel for 6 h. Next, the percentage change of surface microhardness (%SMHC) and mineral loss (Delta Z) were calculated. CaF(2) retained and fluoride present in the pH-cycled solutions were also measured. Results: The use of the coat did not decrease %SMHC and Delta Z, but all fluoride varnishes had better results when compared to the placebo (ANOVA and Kruskal-Wallis, respectively). The values from CaF(2) formed were higher compared to the values of CaF(2) retained (non-paired t test, p<0.05). There was a trend to decrease the amount of F in the solutions at the end of pH cycling (Kruskal-Wallis, p<0.05). Conclusions: Although the experimental coat increased the formation of CaF(2) on the enamel surface, it did not significantly improve the anticariogenic action of fluoride varnishes.
Data de publicação: 
1-Jul-2009
Citação: 
Journal of Applied Oral Science. Bauru-sp: Univ São Paulo Fac Odontologia Bauru, v. 17, n. 4, p. 280-283, 2009.
Duração: 
280-283
Publicador: 
Universidade de São Paulo (USP), Faculdade de Odontologia de Bauru
Palavras-chaves: 
  • Dental caries, prevention & control
  • Topical fluorides
Fonte: 
http://dx.doi.org/10.1590/S1678-77572009000400003
Endereço permanente: 
http://hdl.handle.net/11449/14988
Direitos de acesso: 
Acesso aberto
Tipo: 
outro
Fonte completa:
http://repositorio.unesp.br/handle/11449/14988
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