3M Single Bond 2 Adhesive

3M Single Bond 2 is a well-established, clinically proven dental adhesive from 3M ESPE, trusted by dental professionals worldwide for delivering consistent, high bond strengths to both etched enamel and conditioned dentin in a total-etch protocol. Its proprietary formula includes methacrylate functional copolymer of polyacrylic and itaconic acids, which has a beneficial interaction with hydroxyapatite in dentin, improving bond durability and resistance to hydrolytic degradation over time. The adhesive is moisture tolerant, meaning it maintains reliable performance even when dentin surfaces are not perfectly dried, reducing the risk of desiccation-related bond failures and postoperative sensitivity. Its application is straightforward — apply, agitate, dry, and light-cure — making it suitable for both experienced clinicians and those newer to bonded restorations. Single Bond 2 forms a durable hybrid layer that resists microleakage and provides long-term marginal integrity. Compatible with all 3M ESPE composite resins, as well as other light-cured composites and resin cements.
• Copolymer formula bonds durably to hydroxyapatite in dentin
• Moisture tolerant — performs reliably on moist dentin surfaces
• Resists hydrolytic degradation for long-term bond integrity
• Simple apply-agitate-dry-cure protocol for consistent results
• Compatible with 3M ESPE composites and most resin systems