Effect of nano-filled protective coating on the microleakage resistance of a nanocomposite during bleaching treatment

• DOI: 10.1016/j.jrras.2023.100686
• Publication Date: 2023-09-22T22:20:06Z
• Authors: Mehmet Guvenc; U. Burak Temel; R. Banu Ermis
• Keywords: Carbamide peroxide

This in vitro study aimed to examine the effect of a nano-filled protective coating material on microleakage nanocomposite resin during bleaching treatment. Standardized class V cavities were prepared middle third buccal surfaces ninety human incisors and restored with two-step etch-and-rinse adhesive nanohybrid composite for three groups (n = 30). In Group A, restorations covered G-Coat Plus bleached 10% carbamide peroxide. B, teeth only bleached. C, no or was applied. A performed 8h/day 14 days. The marginal adaptation tooth-restoration interfaces examined by SEM. Microleakage assessed dye penetration sectioned specimens under stereomicroscopy. Marginal gap analyzed respectively independent-samples t-test Kruskal-Wallis test (p 0.05). Application treatment increased percentage interfacial gaps B C (P˂0.01). When compared, lowest found application surface restoration may effectively reduce formation before