Effect of irrigant neutralizing reducing agents on the compromised dislocation resistance of an epoxy resin and a methacrylate resin-based root canal sealer in vitro

The bond strength of the methacrylate resin sealer EndoREZ is improved by the use of sodium thiosulfate and sodium ascorbate after irrigation with NaOCl, but these reducing agents do not improve the bond strength of the epoxy resin sealer AH Plus. Root canal sealers are differentially influenced by irrigant neutralizing (reducing) agents.