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 ? ”
Bulk‐filled posterior resin restorations based on stress‐decreasing resin technology: a randomized, controlled 6‐year evaluation
This r and omized study evaluated a flowable resin composite bulk-fill technique in posterior restorations and compared it intraindividually with a conventional 2-mm resin composite layering technique over a 6-yr follow-up period . Thirty-eight pairs of Class II restorations and 15 pairs of Class I restorations were placed in 38 adults . In all cavities a single-step self-etch adhesive ( Xeno V ) was applied . In the first cavity of each pair , the flowable resin composite ( SDR ) was placed , in bulk increments of up to 4 mm . The occlusal part was completed with a layer of nanohybrid resin composite ( Ceram X mono ) . In the second cavity of each pair , the hybrid resin composite was placed in 2-mm increments . The restorations were evaluated using slightly modified US Public Health Service ( USPHS ) criteria at baseline and then annually for a time period of 6 yr . After 6 yr , 72 Class II restorations and 26 Class I restorations could be evaluated . Six failed Class II molar restorations , three in each group , were observed , result ing in a success rate of 93.9 % for all restorations and an annual failure rate ( AFR ) of 1.0 % for both groups . The AFR for Class II and Class I restorations in both groups was 1.4 % and 0 % , respectively . The main reason for failure was resin composite fracture
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 ? ”