Abstract
Effect of adhesion promoting monomers dissolved in photocurable bonding agents on adhesion to ground dentin was investigated.They were MDP, Phosmer-M and 4-MET.The effect of those monomers was compared with that of Phenyl-P.The bonding agents contained campherquinone(CQ) as a photosensitizer, N-phenylglycine(NPG) as a reducing agent and TEGDMA as a base monomer.Phenyl-P was the best adhesion promoting monomer among those studied monomers.MDP could not polymerize well enough to give good bond strength.Phosmer-M could permeate through the smeared layer but could not make a stable resin reinforced dentin.4-MET did not permeate through the smeared layer and did not adhere to ground dentin.