Effect of Irrigation with Sodium Hypochlorite on the Bond Strength to Dentin Using Different Bonding Protocols

Abstract

The study evaluates the influence of irrigation with sodium hypochlorite on the microtensile bond strength to dentin with different bonding protocols on pre-endodontic restorations. After endodontic opening of restored human molars, teeth were randomly divided into four experimental groups: group 1 was not irrigated and the access was restored, while the other groups were irrigated with sodium hypochlorite. Group 2 was restored, group 3 had the endodontic access walls instrumented, and group 4 had CoJet sandblasting and silane application prior to final restoration. The bond strength after irrigation showed higher values when silicatization is performed.

Keywords

• pre-endodontic restorations
• sodium hypoclorite
• bond strength
• dentin