We measured the adhesive strength in all combination of 5 brands of bonding agents and 5 brands of composite resins, and also investigated the adhesion tendency to the cements that are used as cavity lining material.
Bonding agents that contain phosphate phenyl ester as a monomer, have high adhesive strength for all commercial composite resins with Bis-GMA as the main component.
The adhesive tendency of bonding agents for human enamel was relatively strong compared to dentine in most cases. Also, etching by phosphoric acid had a marked effect on the adhesion to enamel, but the effect was not observed with dentine.
The adhesion to the zinc-polycarboxylate cement, while with zinc-oxide phosphate cement and glass polyalkinoate cement, the adhesive strength was relatively weak, and the values differed according to the kinds of bonding agent. However, it was stronger than the adhesive strength between the cement and dentine.
Zinc-oxide eugenol cement interfered with the setting reaction of the bonding agent.