Abstract: Procedure for the production of fixed temporary and permanent dental prostheses made of resin, using preformed mastication inserts which are applied in a freely orientatable way to models and which are fixed thereto through the application of a little wax and which then have their cores completed with further wax. In making the baseplates the shaped mastication inserts remain first anchored in the baseplates and then in the resin forming the prosthesis. Manufacturing times for prostheses are drastically reduced and no special modeling ability is required from the dental technician. Using "twin prostheses" of the temporary prostheses, an "individual guide" for the construction of permanent prostheses made of resin, composite resin, ceramic or the like is obtained.