Comparative Evaluation of the Shear Bond Strength of Conventional Glass Ionomer Cement, Resin-modified Glass Ionomer Cement, and Glass Hybrid Restorative Material to Silver Diamine Fluoride-treated Dentin
DOI:
https://doi.org/10.48165/ajm.2026.9.02.24Keywords:
Silver diamine fluoride, Shear bond strength, Glass ionomer cementAbstract
Aim: To comparatively evaluate the shear bond strength of conventional glass ionomer cement (CGIC), resin-modified glass ionomer cement (RMGIC), and glass hybrid restorative material (GHRM) bonded to 38% silver diamine fluoride-treated dentin. Materials and Methods: Forty-five extracted human premolars were prepared to obtain standardized flat dentin surfaces and randomly allocated into three groups (n = 15): Group I—Conventional Glass Ionomer Cement (Fuji IX GP Extra), Group II—Resin-Modified Glass Ionomer Cement (Fuji II LC), and Group III—Glass Hybrid Restorative Material (Equia Forte HT). Following pretreatment with 38% silver diamine fluoride, the restorative materials were bonded to the dentin surface using Teflon molds. After 24-hour storage and 500 thermocycles, shear bond strength was evaluated using a universal testing machine. Data were analyzed using one-way ANOVA and Tukey's post hoc test (p < 0.05). Results: The glass hybrid restorative material demonstrated the highest mean shear bond strength, followed by the resin-modified glass ionomer cement, while the conventional glass ionomer cement exhibited the lowest values. The differences among the three groups were statistically significant (p < 0.05). Conclusion: Among the restorative materials evaluated, the glass hybrid restorative material exhibited superior shear bond strength to SDF-treated dentin, followed by resin-modified glass ionomer cement. Conventional glass ionomer cement demonstrated comparatively lower bond strength. Glass hybrid restorative materials may therefore be considered a suitable restorative option following silver diamine fluoride application in minimally invasive restorative procedures.
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