Does Bleaching Affect the Microleakage of Class II Restoration with Bulk-Fill Composite?

Introduction: The use of technology in bulk-fill composites (BCs) has reduced the stresses caused by polymerization shrinkage, debonding, microleakage, or posttreatment sensitivity in them. This study was conducted to determine whether bleaching affects the microleakage of class II restoration with bulk-fill material.

Materials And Methods: This laboratory study was performed on 40 normal human premolars in 4 groups ( = 20).