Elif KURU, Nesrin ERONAT, Murat TÜRKÜN, Dilşah ÇOĞULU
Meandros Medical and Dental Journal - 2026;27(3):414-422
Objective: To evaluate and compare the microleakage of a calcium silicate material (Biodentine) with glass ionomer cement (GIC) and composite resin in standardized coronal dentin cavities in -vitro. Materials and Methods: Sixty extracted human third molars were used. Standardized dentin cavities (4x2x2 mm) were prepared and randomly assigned to three groups (n=20 each): Biodentine, GIC (Fuji IX), and composite resin (Clearfil SE Bond + Filtek Z250). After restoration, all specimens underwent 3000 thermal cycles. Microleakage was evaluated using basic fuchsin dye penetration and scored under a stereomicroscope. Data were analyzed with Kruskal-Wallis and Bonferroni post hoc tests (p<0.05). Results: The median (interquartile range) microleakage scores were 1.0 (0.0-2.5) for Biodentine, 3.0 (3.0-4.0) for GIC, and 1.0 (0.0-1.0) for composite resin. A statistically significant difference was observed among the groups (H(2) = 24.683, p < 0.001). GIC had significantly higher scores than Biodentine and composite resin (p < 0.001), whereas Biodentine and composite resin did not differ significantly (p>0.05). Conclusion: Biodentine demonstrated significantly lower microleakage compared with glass ionomer cement and comparable sealing performance to composite resin in coronal dentin cavities.
