RESULTS Comparison of retention of class-V adhesive restorations as a measure to determine clinical bonding effectiveness of adhesives revealed that glass-ionomers most effectively and durably bond to tooth tissue .
Three-step etch- and -rinse adhesives and two-step self-etch adhesives showed a clinical ly reliable and predictably good clinical performance .
The clinical effectiveness of two-step etch- and -rinse adhesives was less favourable , while an inefficient clinical performance was noted for the one-step self-etch adhesives .
SIGNIFICANCE Although there is a tendency towards adhesives with simplified application procedures , simplification so far appears to induce loss of effectiveness .
OBJECTIVES The purpose of this paper was to review current literature on the clinical effectiveness of contemporary adhesives when used to restore cervical non-carious class-V lesions .
Restoration retention in function of time was recorded in order to find out if adhesives with a simplified application procedure are as clinical ly effective as conventional three-step adhesives .
Bonding strength to two different surfaces of dentin under simulated pulpal pressure.
PURPOSE The purpose of this in vitro study was to measure and compare the in vitro shear bond strengths ( SBS ) of the following dentin bonding systems to different dentin surfaces under simulated pulpal pressure : Liner Bond 2 ( self-etching ) ( LB2 ) , Liner Bond 2V ( self-etching ) ( LB2V ) , Opti Bond Solo ( single component ) ( OBS ) , Fuji Bond LC ( filled ) ( FBLC ) , Prime & Bond 2 - 1 ( single component ) ( P&B2 - 1 ) , and Solid Bond ( total etching ) ( SB ) . MATERIAL S AND METHODS Occlusal and buccal surfaces of 60 extracted human molars were prepared to expose the dentin bonding surface . After being wet ground with 600-grit abrasive papers , teeth were r and omly assigned to 6 equal groups of 10 each . The dentin surfaces were treated with the bonding systems mentioned above , and resin composite cylinders ( Clearfil AP-X ) were built up under simulated pulpal pressure when diluted bovine serum was used as the pulpal fluid . After one day of storage in 37 degrees C water , the specimens were shear tested to failure on an Instron machine . RESULTS The data were statistically analyzed with the Student 's t-test and a post hoc Tukey test . Comparing buccal surfaces , the post hoc Tukey test indicated no significant differences among all the test groups ( p > 0.05 ) . On occlusal surfaces , the post hoc Tukey test indicated significant differences among the tested groups ( p < 0.05 ) . The Student 's t test revealed significant differences between the occlusal and buccal shear bond strength values in LB 2 , LB2V , and SB groups ( p < 0.05 ) . CONCLUSION The strength of adhesion to dentin depends upon both the adhesive system used - with self-etching systems tending to show higher bond strengths than the other material s tested - and the location of the dentin , with significantly higher SBS being found on buccal surfaces in 3 of the 7 tested bonding systems
RESULTS Comparison of retention of class-V adhesive restorations as a measure to determine clinical bonding effectiveness of adhesives revealed that glass-ionomers most effectively and durably bond to tooth tissue .
Three-step etch- and -rinse adhesives and two-step self-etch adhesives showed a clinical ly reliable and predictably good clinical performance .
The clinical effectiveness of two-step etch- and -rinse adhesives was less favourable , while an inefficient clinical performance was noted for the one-step self-etch adhesives .
SIGNIFICANCE Although there is a tendency towards adhesives with simplified application procedures , simplification so far appears to induce loss of effectiveness .
OBJECTIVES The purpose of this paper was to review current literature on the clinical effectiveness of contemporary adhesives when used to restore cervical non-carious class-V lesions .
Restoration retention in function of time was recorded in order to find out if adhesives with a simplified application procedure are as clinical ly effective as conventional three-step adhesives .