Clinical Evaluation of Bulk-fill Composite Resins in Class II Restorations

"Bulk-fill composites that were introduced in recent years are dental filling materials. Traditionally, the composite resins are placed in increments of 2 mm that are cured separately (incremental technique). Bulk-fill composites can be described as composites that are sufficiently polymerizable in a single layer up to 4 mm thick.~In this study, each bulk-fill composite resin was used both in bulk-filing and incremental techniques for the same patient. The study set to 4 groups and 20 restorations in each group (a total of 80 restorations)."