Current Journal of Applied Science and Technology

Aim: The study aimed to measure the amount of fluoride released from fluoride containing materials. Zirconia reinforced glass ionomer cement (Zirconomer, SHOFU INC), high density glass ionomer cement (Ketac^TM Molar, 3M^TM ESPE^TM) and packable posterior glass ionomer restorative material (GC Fuji IX GP) were used in the study.

Methodology: Thirty samples of 2 mm length × 2 mm width × 2 mm height were prepared from each material using a custom made Teflon mould. The amount of fluoride released was measured after 7 hrs, 14 hrs, 24 hrs, 48 hrs, 5^th day, 10^th day, 15^th day and 20^th day of immersion in artificial saliva using Ion Specific Electrode (ELIT 9801). The results obtained were statistically analyzed using ANOVA and post hoc Tukey test.

Results: Ketac molar exhibited maximum release of fluoride followed by Zirconomer and Fuji IX. Significant statistical difference was observed in fluoride release of different materials after 14 hrs, 24 hrs, 5^th, 10^th and 20^th day (p<0.05).

Conclusion: All materials used in the present study released fluoride, but a higher rate of fluoride release was observed in packable posterior glass ionomer material compared to zirconia reinforced glass ionomer material and high density glass ionomer material.