Resin Coating Technique for Protection of Pulp and Increasing Bonding in Indirect Restoration

Abstract

A resin coating technique has been widely advocated in recent years. A combination of a dentin bonding system and a flowable composite is applied on the exposed dentin surfaces immediately after tooth preparation and before taking the final impression. The resin coating is beneficial to both minimize pulpal irritation and enhance the bond strength of a resin cement to dentin. Recently introduced thin-film coating materials based on all-in-one adhesive technology are used for resin coating of crown restorations. Thin-film coating materials can be applied in a single clinical procedure and followed by created a barrier-like film layer on the prepared dentin. Therefore, the resin coating technique may play an important role to protect the dentin physically, chemically, and biologically. The coating materials also have the potential to cover exposed sound enamel and dentin, leading to maximum tooth structure preservation.