Fluoride release from different powder liquid ratios of Fuji VII
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Abstract
Objective: The quantity of fluoride ions released from glass-ionomer cements is of major importance in the prevention of dental caries in children. Fuji VII is a glass-ionomer that releases more fluoride ions than other fluoride releasing materials.
Purposep: To evaluate the concentration of fluoride ions released from the Fuji VII with differing powder liquid (P/L) mixing ratios.
Methods: Eight cylindrical specimens from four groups with different P/L ratios were prepared and immersed independently in 10 mL of deionized water. The fluoride release was evaluated on days 1-7 using a fluoride ion specific electrode. Statistical analyses of the difference between fluoride concentrations were analyzed using one-way ANOVA and Tukey’s multiple comparison test.
Results : The fluoride released by the glass ionomers (GIs) was found to be highest during the first 24 h and decreased significantly; lower levels were obtained on day 7. Fuji VII P/L ratio 4:4 and Fuji VII P/L ratio 3:4 showed similar patterns and quantity of fluoride release, which were significantly lower than Fuji VII P/L ratio 2:4 and Fuji VII P/L ratio 1:4.
Conclusions: Fuji VII P/L ratio 2:4 and Fuji VII P/L ratio 1:4 released more fluoride than Fuji VII P/L ratio 4:4 and Fuji VII P/L ratio 3:4.
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References
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