Abstract
We developed 4-META (4-methacryloxyethyltrimellitate anhydride) as an adhesive monomer. Then we prepared an adhesive heat-curing denture base resin using 4-META. In order to develop a more easily and widely usable system we prepared an adhesive self-curing denture base resin. It consists of 4-META containing bonding liner, MMA as a liquid component and PMMA as a powder component. It has good adhesion to the various dental metals. The tensile adhesive strength of this new resin system is 100-150 kg/cm2to the sandbrasted metals such as Co-Cr alloy, Sus 304 and silver alloys even after 1, 000-time thermal cycling test. The tensile adhesive strength to the Co-Cr alloy is also 130 kg/cm2after the 180-day water immersion test. The bonding test of the flat plate, which is a resin-adhered Sus 304 plate, shows reinforcement effect of this resin system even after the 300-time thermal cycling test. Therefore it is expected to be very useful when we prepare a new metal denture or when we repair a broken denture.
