Bond Strength of Resin Cements to Dentin Using New Universal Bonding Agents

The purpose of this study was to determine the effect of new universal bonding agents on the bond strength of dual-cure resin cements to dentin. One hundred forty extracted human third molars were mounted in dental stone and sectioned with a saw to remove coronal tooth structure. The teeth were randomly divided into seven groups of twenty based on the use of five universal bonding agents (All-Bond Universal, Bisco; FuturaBond U, VOCO; Prime and Bond Elect, Dentsply; Scotch bond Universal, 3M ESPE; Clearfil Universal, Kuraray) compared to two self-etch bonding agents (Clearfil SE Bond and Clearfil SE Bond 2, Kuraray). Each group was further divided into two equal subgroups of ten specimens each with each subgroup tested with either self- or light-cure activation of the dual-cure resin cement (Calibra, Dentsply).