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 ? ”
Randomized 3-year clinical evaluation of Class I and II posterior resin restorations placed with a bulk-fill resin composite and a one-step self-etching adhesive.
PURPOSE To evaluate the 3-year clinical durability of the flowable bulk-fill resin composite SDR in Class I and Class II restorations . MATERIAL S AND METHODS Thirty-eight pairs of Class I and 62 pairs of Class II restorations were placed in 44 male and 42 female patients ( mean age 52.4 years ) . Each patient received at least two extended Class I or Class II restorations that were as similar as possible . In all cavities , a one-step self-etching adhesive ( XenoV+ ) was applied . One of the cavities of each pair was r and omly assigned to receive the flowable bulk-fill resin composite SDR in increments up to 4 mm as needed to fill the cavity 2 mm short of the occlusal cavosurface . The occlusal part was completed with an ormocer-based nanohybrid resin composite ( Ceram X mono+ ) . In the other cavity , only the resin composite CeramX mono+ was placed in 2 mm increments . The restorations were evaluated using slightly modified USPHS criteria at baseline and then annually for 3 years . Caries risk and bruxing habits of the participants were estimated . RESULTS No post-operative sensitivity was reported . At the 3-year follow-up , 196 restorations - 74 Class I and 122 Class II - were evaluated . Seven restorations failed ( 3.6 % ) , 4 SDR-CeramX mono+ and 3 CeramX mono+ only restorations , all of which were Class II . The main reason for failure was tooth fracture , followed by resin composite fracture . The annual failure rate ( AFR ) for all restorations ( Class I and II ) was 1.2 % for the bulkfilled restorations and 1.0 % for the resin composite-only restorations ( p > 0.05 ) . For the Class II restorations , the AFR was 2.2 % and 1.6 % , respectively . CONCLUSION The 4-mm bulk-fill technique showed good clinical effectiveness during the 3-year follow-up
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 ? ”