Dia-Proseal by DiaDent is an epoxy resin-based root canal sealer formulated for long-term obturation. It offers excellent flow properties, allowing it to reach and seal lateral canals effectively—making it especially suited for use with warm gutta-percha techniques. The material demonstrates strong adhesion to both gutta-percha and dentin, minimizing the potential for leakage or voids.
Enhanced with calcium hydroxide, Dia-Proseal offers a high pH for antimicrobial effectiveness while maintaining biocompatibility to help reduce periapical inflammation and post-operative sensitivity. The formula sets within 3–4 hours and maintains dimensional stability over time due to low shrinkage and solubility. Its radiopacity ensures clear visualization on X-rays, and the 1:1 paste-to-paste mixing system allows for fast, consistent preparation.