A new monomer 12-methacryloyloxydodecyl-pyridinium bromide (MDPB) was developed by combining the antibacterial agent quaternary ammonium and a methacryloyl group, incorporated into the resin of the composite .MDPB copolymerizes with other monomers after curing of the composite and the antibacterial agent is covalently bonded to the polymer network. The immobilized agent does not leach out from the material but acts as a contact inhibitor against the bacteria which attach to the surface.One of the advantages of bactericide-immobilized composite is the long-lasting antibacterial effect.
REF : Dental Materials 19 (2003) 449—457
No comments:
Post a Comment