No overall effect was revealed in the meta-analyses , meaning that no influence of the  ER or SE strategy on POS .
SIGNIFICANCE The type of adhesive strategy ( ER or SE ) for posterior resin composite restorations does not influence the risk and intensity of POS .
OBJECTIVES A systematic review and meta- analysis were performed on the risk and intensity of postoperative sensitivity ( POS ) in posterior resin composite restorations bonded with self-etch ( SE ) and etch- and -rinse ( ER ) adhesives .
Evaluation of packable and conventional hybrid resin composites in Class I restorations: three-year results of a randomized, double-blind and controlled clinical trial.
The clinical performance of packable and conventional hybrid resin composites in Class I restorations for a period of three years was compared using a r and omized controlled double-blind clinical trial with self-matching design . A total of 50 pairs of Class I restorations were placed in 32 adult patients by one dentist in a self-matching prospect i ve clinical trial . The paired teeth were divided into the TPH Spectrum/XenoIII ( TS ) restoration group and the Synergy Compact/One Coat ( SC ) restoration group according to a r and om number table . Application of the material s followed the manufacturer 's instructions . The restorations were evaluated by two independent evaluators using US Public Health Service (USPHS)-Ryge modified criteria . Statistical analysis was performed using the McNemar 's test with Yates ' continuity correction . After three years , 40 pairs of restorations were available for evaluation . Four TS and two SC restorations failed due to fracture . Only one TS-restored tooth showed postoperative sensitivity at baseline and the symptom disappeared one week later . Alpha ratings of TS vs SC restorations were as follows : 95 % vs 98 % for color match , 85 % vs 88 % for marginal integrity , 88 % vs 90 % for anatomical form , 85 % vs 83 % for marginal discoloration , 88 % vs 93 % for occlusal contact . For both material s , Alpha ratings were 88 % for surface texture . The three-year clinical performances of the two restorative material s were satisfactory and not significantly different for each of the parameters evaluated
No overall effect was revealed in the meta-analyses , meaning that no influence of the  ER or SE strategy on POS .
SIGNIFICANCE The type of adhesive strategy ( ER or SE ) for posterior resin composite restorations does not influence the risk and intensity of POS .
OBJECTIVES A systematic review and meta- analysis were performed on the risk and intensity of postoperative sensitivity ( POS ) in posterior resin composite restorations bonded with self-etch ( SE ) and etch- and -rinse ( ER ) adhesives .