The fluoride release of four restorative glass-ionomer cements — Photac Fil (PF), Vitremer (VT), Fuji II LC (F2) and Fuji IX (F9) — was compared during 14 days. The readings of the fluoride released to deionized water were done by means of a fluoride ion selective electrode and an ion analyzer. Data were analyzed by one-way ANOVA and Tukey's test. The amount of fluoride released from PF was significantly higher than that from the other materials (PF > VT > F9 > F2). There was no significant difference between VT and F9, nor between F2 and F9 (p < 0.05)
Glass ionomer cements; Fluoride
