The invention relates to a device for holding a model support of an abutment model and also to an insert (1) for holding such a model support, with a first area and a second area, wherein the first area comprises a flat surface (6) with a step (4) at the center of which there is an area which has an attachment geometry of an implant and onto which the model support of the abutment model can be mounted, wherein the second area comprises means that permit positioning of the insert, and wherein the insert comprises an optically detectable marking (5). The invention additionally relates to a pot (13) for receiving an insert according to the invention, wherein the pot comprises at least one magnet (18) and at least one recess and/or elevation on the bottom surface. The invention also relates to a scanning device, a scanning method, a method for producing an abutment, a method for producing a tooth replacement part, and a computer-readable medium.
