Effect of interim cement application on bond strength between resin cements and dentin: Immediate and delayed dentin sealing.

Statement Of Problem: Despite the advances in materials and techniques, adhesion to dentin is challenging because of the complex composition of dentin's mineral, organic, and fluid phases.

Purpose: The purpose of this in vitro study was to evaluate the bond strength of 2 different resin cements (conventional and self-adhesive) with or without previous dentin sealing and the effect of interim cement.

Material And Methods: Forty-five molars were embedded into acrylic resin blocks and a flat dentin surface was exposed.