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 dentine replacement versus incrementally placed resin composite: A randomised controlled clinical trial.
OBJECTIVE This r and omized controlled clinical trial compared two techniques and material s for restoring carious teeth-Bulk  dentine replacement versus incremental placement of a hybrid posterior resin composite material in terms of patient comfort ( post operative sensitivity and tenderness on biting ) . MATERIAL AND METHODS Seventy-two carious teeth were r and omized to one of two treatment groups : Group A-were restored with a bulk dentine replacement material or Group B-restored with incrementally placed hybrid composite . Patients were followed up by way of a structured phone call at day 2 and day 7 post-operatively . Patients reporting discomfort at day 7 were subsequently followed up on days 14 , and 30 . RESULTS All patients were followed up . At day 2 , 18/72 restored teeth had post-operative sensitivity ; this figure fell to 10/72 at day 7 . A Chi squared test revealed that at day 2 a greater level of sensitivity was reported by patients in Group A ( P=0.029 ) . However , at day 7 there was no statistically significant difference between the two groups in terms of sensitivity ( P=0.453 ) . 8/72 and 6 /72 teeth had tenderness to biting at days 2 and 7 respectively . A Chi squared test revealed no statistically significant difference between the two groups in terms of tenderness on biting at any time period ( P=0.722 ) . Interestingly , Class I cavities were found to be more tender on biting than Class II cavities . At day 30 2/72 teeth exhibited sensitivity and none of the teeth exhibiting tenderness on biting . CONCLUSION At day 7 there was no significant difference between the two groups in terms of postoperative sensitivity and tenderness on biting
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 ? ”