Conclusions : The application of a 2 % chlorhexidine solution after acid etching increased the microtensile bond strength significantly for follow-up times of 6 months or more .
The adhesive type had no influence
Background and Objectives : The aim of this systematic review was to examine the effect of 2 % chlorhexidine following acid etching on the microtensile bond strength of resin restorations for different follow-up times .
Randomized clinical trial of four adhesion strategies: 18-month results.
STATEMENT OF THE PROBLEM With Institutional Review Board approval , 39 patients who needed restoration of noncarious cervical lesions ( NCCLs ) were enrolled in this study . A total of 125 NCCLs were selected and r and omly assigned to four groups : 1 ) a three-step etch- and -rinse adhesive , Adper Scotchbond Multi- Purpose ( MP , 3 M ESPE , St Paul , MN , USA ) ; 2 ) a two-step etch- and -rinse adhesive , Adper Single Bond Plus ( SB , 3 M ESPE ) ; 3 ) a two-step self-etch adhesive , Adper Scotchbond SE ( SE , 3 M ESPE ) ; and 4 ) a one-step self-etch adhesive , Adper Easy Bond ( EB , 3 M ESPE ) . A nanofilled composite resin was used for all restorations . Restorations were evaluated at six months and 18 months using modified U.S. Public Health Service ( USPHS ) parameters . RESULTS At six months after initial placement , 107 restorations ( 85.6 % recall rate ) were evaluated . At 18 months , 94 restorations ( 75.2 % recall rate ) were available for evaluation . The 6 mo/18 mo overall retention rates ( % ) were 100/90.9 for MP ; 100/91.7 for SB ; 100/90.9 for SE ; and 96.4/92.3 for EB with no statistical difference between any pair of groups at each recall . Sensitivity to air decreased significantly for all adhesives from the preoperative to the postoperative stage and was stable thereafter . Interfacial staining did not change statistically from baseline to six months ; however , interfacial staining at the enamel margins was statistically worse at 18 months than at baseline for the two self-etch adhesives EB and SE . Marginal adaptation was statistically worse at 18 months compared with baseline only for EB . This tendency was already significant at the six-month recall . CONCLUSION Although 18-month retention was similar for the different adhesion strategies , enamel marginal deficiencies were more prevalent for the self-etch adhesives
Conclusions : The application of a 2 % chlorhexidine solution after acid etching increased the microtensile bond strength significantly for follow-up times of 6 months or more .
The adhesive type had no influence
Background and Objectives : The aim of this systematic review was to examine the effect of 2 % chlorhexidine following acid etching on the microtensile bond strength of resin restorations for different follow-up times .