The present invention relates to a kind of dental prosthetic model, the dental prosthetic part including positive model (15). The region for using lost-wax casting technology to have positioning pin is defined particular according to given optimization process by the outer profile dental prosthetic part that the positive model (15) limits at least (36). It is a feature of the present invention that positioning pin region, which is provided with director element (30), a receiving and/or guiding material feeder (22,24,26 and 28).
