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 ? ”
Two-year clinical performance of sonic-resin placement system in posterior restorations.
OBJECTIVE The objective of this split-mouth r and omized controlled study was to compare the 2-year clinical performance of two restorative techniques and material s for posterior permanent carious teeth . METHOD AND MATERIAL S After signing informed consent , 30 patients aged between 7 and 16 received two Class 1 restorations on cavities on permanent first or second molar teeth performed with one of two systems : incrementally placed conventional posterior composite resin ( Herculite Ultra , Kerr ) , and sonic-resin placement system ( SonicFill , Kerr ) with single-component self-etch adhesive system ( Kerr ) according to the manufacturers ' directions . Two blinded observers evaluated the restorations at three times ( baseline , and after 1 and 2 years ) according to the US Public Health Service modified criteria . Kruskal-Wallis test and Mann-Whitney U-test were used to compare the clinical performance of the restorative systems . RESULTS The restorative systems showed similar clinical performance at 2 years . At the end of 2 years in both groups , one restoration 's marginal staining Alpha ratings decreased . In the same period , two restorations in the conventional group and one in the SonicFill group received Bravo ratings for color match and surface roughness scorings . CONCLUSION The sonic-resin placement system demonstrated similar results to incrementally placed conventional composite resin in terms of clinical success . Considering the advantages of providing up to 5 mm in a single layer , and the adjustability of the viscosity , bulk-fill composite restorations seem to be a good alternative to posterior Class 1 composite restorations . CLINICAL RELEVANCE This study suggests that a new dental material for bulk-fill technology exhibits similar clinical success to incrementally placed composite resin
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 ? ”