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In vitro assessment of an experimental coat applied over fluoride varnishes
Delbem, Alberto Carlos Botazzo; Brighenti, Fernanda Lourenção; Oliveira, Felipe Alberto Lino; Pessan, Juliano Pelin; Buzalaf, Marília Afonso Rabelo; Sassaki, Kikue Takebayashi.
  • Delbem, Alberto Carlos Botazzo; São Paulo State University. Araçatuba Dental School. Araçatuba. BR
  • Brighenti, Fernanda Lourenção; São Paulo State University. Araçatuba Dental School. Araçatuba. BR
  • Oliveira, Felipe Alberto Lino; São Paulo State University. Araçatuba Dental School. Araçatuba. BR
  • Pessan, Juliano Pelin; São Paulo State University. Araçatuba Dental School. Araçatuba. BR
  • Buzalaf, Marília Afonso Rabelo; São Paulo State University. Bauru School of Dentistry. Department of Biological Sciences. Bauru. BR
  • Sassaki, Kikue Takebayashi; São Paulo State University. Araçatuba Dental School. Araçatuba. BR
J. appl. oral sci ; 17(4): 280-283, July/Aug. 2009. tab
Artigo em Inglês | LILACS | ID: lil-521701
ABSTRACT
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, DuraphatTM, DuraphatTM with coat, DuofluoridTM and DuofluoridTM with coat. Twelve blocks from each group were used to analyze calcium fluoride (CaF2) 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 ( percentSMHC) and mineral loss (ÄZ) were calculated. CaF2 retained and fluoride present in the pH-cycled solutions were also measured. RESULTS: The use of the coat did not decrease percentSMHC and ÄZ, but all fluoride varnishes had better results when compared to the placebo (ANOVA and Kruskal-Wallis, respectively). The values from CaF2 formed were higher compared to the values of CaF2 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 CaF2 on the enamel surface, it did not significantly improve the anticariogenic action of fluoride varnishes.
Assuntos

Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Técnicas In Vitro / Fluoretos Tópicos Limite: Animais Idioma: Inglês Revista: J. appl. oral sci Assunto da revista: Odontologia Ano de publicação: 2009 Tipo de documento: Artigo / Documento de projeto País de afiliação: Brasil Instituição/País de afiliação: São Paulo State University/BR

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Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Técnicas In Vitro / Fluoretos Tópicos Limite: Animais Idioma: Inglês Revista: J. appl. oral sci Assunto da revista: Odontologia Ano de publicação: 2009 Tipo de documento: Artigo / Documento de projeto País de afiliação: Brasil Instituição/País de afiliação: São Paulo State University/BR