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 .
Clinical evaluation of packable composite resins in Class-II restorations
Abstract . This study investigated the clinical performance of two packable composite resins  in Class-II restorations . One hundred and four Class-II restorations were placed in 52 patients by five dentists ( four in dental practice s and one in a university clinic ) in a controlled prospect i ve multicentre clinical trial . Each patient received one Definite/Etch & Prime 3.0 ( D-EP ) and one Solitaire/Solid Bond ( S-SB ) restoration , which were examined clinical ly according to modified USPHS- criteria after 1 week ( baseline ) and after 1 year . Statistical analysis was performed using the Wilcoxon rank sum test and the error rates method . The significance level was set to 0.05 . At baseline both material s performed equally according to the evaluated criteria . After 1 year D-EP showed significantly worse marginal adaptation compared to S-SB . Both material s displayed significant deterioration for the criteria marginal adaptation , marginal discolouration , approximal contact , and fracture of restoration after 1 year compared to baseline . With a failure rate of 9.6 % after 1 year , D-EP did not fulfill ADA acceptance criteria for restorative material s. It is proposed that at least 1-year data of clinical testing should be available before a new material is broadly marketed
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 .