Abstract
Various properties of the adhesive opaque resin containing titanium dioxide were investigated. The mechanical characteristics of this type resin are the same as the characteristics of PANAVIA EX, but when as thick as 50 μm can hide the color of various metals. The tensile adhesive strength one month after using this type resin, in adhesion between enamel and Co-Cr type alloy (Metacast) was measured as 20 MPa. In the cases of Ni-Cr type alloy (SB Bondloy I) and another type Co-Cr alloy (Durallium JD), the tensile adhesive strengths were also surveyed after thermal cycles for 20, 000 times, the results being 44.9 MPa and 32.4 MPa respectively. Both of these values exceed the value measured in the case of PANAVIA EX. The value found when we adhered Metacast with Metacast and made thermal cycles for 10, 000 times was consistently 40 MPa.
