Marginal and internal adaptation of bulk fill-Composites

This study evaluated restorative systems for marginal and internal adaptation of the restorative material in class I restorations. These restorative systems comprise the restorative material and its adhesive system, five of which are resin-based materials of the type "Bulk fill" which are indicated for single increment application (Tetric EvoCeram Bulk Fill / Ivoclar Vivadent; Opus Bulk Fill / FGM, Fill-Up! / Coltene; Equia Forte Fill / GC Corp. and Activa BioActive Restorative / Pulpdent) and a composite resin of traditional incremental application (Filtek Z350 XT / 3M ESPE) (control group). The results were tabulated and submitted to statistical analysis for comparison between the experimental groups.