Immediate Dentin Sealing: Improving Bond Strength and Restoration Longevity

Immediate dentin sealing (IDS) is a technique used in restorative dentistry to improve bond strength and longevity of indirect restorations. IDS involves applying an adhesive layer to exposed dentin immediately after tooth preparation, sealing the dentin and preventing debonding issues that can occur over time. In in vitro studies, IDS has shown to provide the same strength as bonding only to enamel when more than 50% of the tooth's surface is in dentin. Clinical studies have also demonstrated the effectiveness of IDS, with significantly lower failure rates in restorations bonded to dentin that received IDS. The IDS technique involves using a three-step or two-step adhesive system, depending on the manufacturer, and may include a resin coating for added strength and connection between the adhesive and the IDS layer.