In Vitro Comparison of the Fluoride Ion Release from the First- and Second-Generation Fluoride Varnishes

Fluoride varnishes, both the first and second generations, are effective in inhibiting caries, especially children adolescents, by reducing it on average 43% for permanent teeth 37% deciduous teeth. The aim of this study was to evaluate dynamics vitro fluoride ion release from first- (Duraphat) second-generation (MI Varnish Embrace Varnish) varnishes impact type varnish, time its application pH environment process. Materials methods: test material (90 specimens), prepared extracted human teeth, were divided into nine groups 10 specimens each. Measured amounts examined applied onto levels assessed at baseline after 1, 2, 24, 48 168 h with use an ion-specific electrode. immersed artificial saliva adjusted 4, 5 7. highest cumulative obtained MI (11.52 ppm/mg), regardless environment, whereas lowest released concentration achieved (4.82 ppm/mg). In acidic significantly higher than neutral all investigated no change overall profile maximum two hours application. findings indicate that amount within related acidity immersion medium.