Vermilyea S G, Kuffler M J, Tamura J J
J Prosthet Dent. 1983 Nov;50(5):651-3. doi: 10.1016/0022-3913(83)90202-0.
The effect of investment material on the casting accuracy of five base metal alloys was evaluated. Overall, the fit of the test castings was poor. Individual alloy-investment interaction appears to be significant. Although marketed for use with base metal alloys, it appears that investment manufacturers' recommended techniques require alteration to enhance the fit of base metal restorations.
