SHEAR BOND STRENGTH OF COMPOSITE RESIN TO FRESH AMALGAM

The shear bond strength between fresh amalgam and composite resin usin g three adhesive systems was assessed. Amalgambond (5.19 MPa), All-Bon d (3.45 MPa), and Clearfil New-Bond (4.37 MPa) had comparable shear bo nd strengths higher than Enamel Bond (1.27 MPa) after 48 hours of wate r immersion. This bond was hydrolytically degraded during 100 days of immersion in water. The greatest deterioration was observed for Clearf il New-Bond (0.81 MPa). Amalgambond provided the best results, whereas All-Bond and Clearfil New-Bond had comparable bond strength to Enamel Bond at the end of the experiment.