“Comparison of Fluoride Recharge and Re-Release among Glass Ionomer, Compomer, and Giomer’’
Keywords:
Fluoride release, Fluoride recharge, Glass ionomer, Compomer, Giomer, Restorative materialsAbstract
Background: Fluoride-releasing restorative materials play a crucial role in preventing secondary caries by providing sustained fluoride release and recharge capacity. This study aimed to compare the fluoride release and recharge behavior of glass ionomer, compomer, and giomer restorative materials.
Methods: In this in vitro study, standardized samples of glass ionomer, compomer, and giomer were prepared and immersed in deionized water. Fluoride release was measured on days 1, 3, 6 (before recharge), and days 7, 10, and 13 (after fluoride recharge). Statistical analysis was performed using ANOVA with multiple pairwise comparisons to determine differences among the materials.
Results: Glass ionomer consistently exhibited the highest fluoride release at all time points (8.538 ± 1.282 µg/cm² on day 1; 0.904 ± 0.060 µg/cm² on day 13 after recharge), followed by compomer and giomer. Differences among the materials were statistically significant (p < 0.001) at each measurement, with pairwise comparisons confirming superior performance of glass ionomer. Fluoride release decreased over time for all materials, but glass ionomer maintained higher levels even after repeated fluoride recharge. Compomer and giomer showed lower initial release but retained measurable recharge potential.
Conclusion: Glass ionomer demonstrated superior fluoride release and recharge capacity, suggesting enhanced caries-preventive benefits, particularly for high-risk patients or restorations requiring sustained fluoride availability. Compomer and giomer, while less potent, remain viable alternatives when esthetic and mechanical considerations are prioritized
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