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 .
Influence of chlorhexidine concentration on microtensile bond strength of contemporary adhesive systems.
The purpose of this study was to investigate the influence of chlorhexidine ( CHX ) concentration on the microtensile bond strength ( muTBS ) of contemporary adhesive systems . Eighty bovine central incisors were used in this study . The facial enamel surface of the crowns was abraded with 600-grit silicon carbide paper to expose flat , mid-coronal dentin surfaces . The tested material s were Scotchbond Multi purpose ( SMP ) , Single-Bond ( SB ) , Clearfil SE Bond ( CSEB ) and Clearfil Tri S Bond ( CTSB ) . All the material s were applied according to manufacturer 's instructions and followed by composite application ( Z250 ) . The teeth were r and omly divided into 16 groups : for the etch- and -rinse adhesives ( SMP and SB ) , 0.12 % or 2 % CHX was applied prior to or after the acid etching procedure . For the self-etch adhesives ( CSEB and CTSB ) 0.12 % or 2 % CHX was applied prior to the primer . Control groups for each one of the adhesive systems were also set up . The specimens were immediately su bmi tted to muTBS testing and the data were analyzed using Analysis of Variance and the Tukey post hoc test ( alpha = .01 ) . The failure patterns of the specimens were observed using scanning electron microscopy . The effects of 2 % CHX were statistically significant ( p < 0.01 ) for the self-etch adhesives but were not significant for the etch- and -rinse adhesive systems . Analysis of the data demonstrated no statistical difference between the etch- and -rinse adhesive systems . CHX-based cavity disinfectants in concentrations higher than 0.12 % should be avoided prior to the self-etch adhesive systems evaluated in this study to diminish the possibilities of reduction in bond strength
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 .