Conclusions The present systematic review and meta- analysis indicate similar clinical performances of bulk-fill and conventional resin composites over a follow-up period of 12 to 72 months .
Clinical significance Based on the results of this study , the bulk-fill resin composites could be an alternative for direct restorations in posterior teeth .
Objectives The purpose of this systematic review was to compare the clinical performance of bulk-fill resin composites with conventional resin composites used for direct restorations of posterior teeth .
The research question was “ Do bulk-fill resin composites have a clinical performance comparable to conventional resin composites in posterior restorations ? ”
A practice-based, randomized, controlled clinical trial of a new resin composite restorative: one-year results.
This study evaluated the performance of a low-shrinking resin composite compared with an amalgam for restoration of Class I and II cavities of moderate size in posterior teeth in a general practice setting . Fifty-two pairs of test and control restorations were placed in 49 patients . Clinical evaluations and assessment s of replica models were carried out at baseline , six months and one year . Patients recorded their level of satisfaction with the restorations by means of  visual analog scales . Apart from one control restoration that failed due to a fractured cusp , all of the restorations review ed at six months and one year were intact with no unacceptable scores for any of the evaluation criteria . It was concluded that the resin composite evaluated , when used in conjunction with the recommended adhesive system , may be an appropriate alternative to amalgam in the restoration of posterior teeth over one year in clinical service
Conclusions The present systematic review and meta- analysis indicate similar clinical performances of bulk-fill and conventional resin composites over a follow-up period of 12 to 72 months .
Clinical significance Based on the results of this study , the bulk-fill resin composites could be an alternative for direct restorations in posterior teeth .
Objectives The purpose of this systematic review was to compare the clinical performance of bulk-fill resin composites with conventional resin composites used for direct restorations of posterior teeth .
The research question was “ Do bulk-fill resin composites have a clinical performance comparable to conventional resin composites in posterior restorations ? ”