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 nanofill and nanohybrid composite in Class I restorations: a 12-month randomized trial.
This r and omized trial evaluated the 12-month clinical performance of nanofill , a nanohybrid , and a microhybrid composite in restorations in occlusal cavities of posterior teeth . This study utilized 41 patients , each of whom had three molars affected by primary caries or the need to replace restorations . All restorations were performed in accordance with the manufacturer 's recommendations and evaluated in accordance with U.S. Public Health Service-modified criteria . Based on the results of the present study , the material investigated demonstrated acceptable clinical performance after 12 months of clinical service . Long-term re-evaluations are necessary for a more detailed analysis of these composites
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 .