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 .
Performance of occlusin in butt-joint and bevel-edged preparations: five-year results. 4.
The five-year findings of a study to compare the performance of restorations of Occlusin ( ICI Dental , Macclesfield , UK ) in butt-joint and bevel-edged preparations are reported . Ninety-four ( 79 % ) of the restorations originally placed were review ed at five years , 20 restorations ( 17 % ) having failed during the study . Initial analysis of the overall results having failed to reveal any significant differences between the five-year performance of the two types of restorations , the results were combined and analyzed by Chi-square tests and step-wise logistic regression . Chi-square analysis indicated that of the independent variables investigated , size of restoration had the greatest effect on clinical performance . Step-wise logistic regression revealed that only four of the eight dependent variables investigated showed significant predictive relationships with the independent variables , the logistic equation for occlusal marginal adaptation being the most complex . The greatest amount of generalized occlusal surface wear tended to be seen in large-sized Class II restorations in molar teeth , with the main factor influencing wear being found to be the type of restoration ( Class I or Class II ) . It is concluded that the performance of  restorations of Occlusin  has not been found to differ significantly in butt-joint and bevel-edged preparations after five years in clinical service . Step-wise logistic regression has been found to be a useful tool in the analysis of data obtained during the clinical evaluation of a restorative material
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 .