PROBLEM TO BE SOLVED: To provide a method of manufacturing a temporary prosthesis, which enables the sufficient polymerization and hardening of a composite resin brought into contact with an impression material surface of a mold.SOLUTION: A method of manufacturing a temporary prosthesis includes the steps of: forming a mold by combining a plurality of members being members, the at least one of which is made of an impression material and polymerizing and hardening a composite resin within the mold. The method of manufacturing the temporary prosthesis also includes a step of applying a catalyst-containing liquid to an impression material surface of the mold.
