IN-VITRO COMPARISON OF FILLED AND UNFILLED UNIVERSAL BONDING AGENTS OF AMALGAM TO DENTIN

In this study, four different adhesive amalgam systems were compared ( Amalgambond Plus, Amalgambond Plus with HPA, All-Bond 2, and All-Bond 2 with Liner-F) regarding their ability to bond amalgam to freshly pre pared dentinal surfaces. The two groups that yielded the highest mean bond strengths, Amalgambond Plus with HPA and All-Bond 2 with Liner-F, were the only two groups in comparison that were not statistically di fferent (P > 0.05). The use of the filled resin bonding agents created significantly higher bond strengths between tooth and freshly tritura ted amalgam than the unfilled resin bonding agents. Further study is r equired to determine: a) the exact nature and mechanism of the bonds, and b) clinical in vivo presence and longevity of the bonds.