Objective To observe the influence of different investing methods and mold cooling methods on pure titanium castings invested in the self-made investment, and to provide theoretic base for the development for the investment. Methods The influence of investing methods（one-step investing method and two-step investing method） on castability and crown fit of titanium castings were investigated, and the influence of cooling methods on reaction layers, mechanical properties and crown fit of titanium castings were investigated. Results Both the investing methods exhibited good castability, but only the titanium full crowns by one-step investing method showed clinically acceptable fit. Although the quenching group showed thinner reaction layer（100 μm）, lower strength and similar elongation rate, the titanium castings by bench cooling showed clinically acceptable full crown fit with 115 μm thick reaction layer as cast. Conclusion The one-step investing method and the bench cooling are recommended for the self-made investment.
