Method for producing a dental prosthesis, wherein the dental prosthesis comprises a prosthesis for attachment to an implant for insertion in a jaw, wherein the attachment is realised via a connection surface, and wherein - a correlated 3D X-ray model is provided, in which a measurement dataset of a 3D X-ray image is correlated with a measurement dataset of a three-dimensional optical measurement in respect of geometry, - wherein the first measurement dataset of the 3D X-ray image and the second measurement dataset of the three-dimensional optical measurement of the visible surface comprises a region of the prosthesis that is to be inserted, which includes the jaw and at least parts of the neighbouring teeth (11, 12), - wherein a dataset of at least the surface of the prosthesis is provided as a 3D prosthesis model - wherein the 3D prosthesis model is represented on the display unit in the correct position in the correlated 3D X-ray model and is represented together with it on a display unit, wherein a dataset of the implant is displayed on the display unit as a 3D implant model in the correlated 3D X-ray model and is positioned at least approximately in the 3D X-ray model by input means (4, 5) or automatically, taking into account the 3D prosthesis model which is already represented in the correct position, and the 3D X-ray model, and is further selected preferably either on the basis of type and/or is adjusted in terms of dimensions, wherein the implant is selected from a plurality of implants, wherein the prosthesis model is connected to the 3D implant model indirectly via a prefabricated separate connecting element, wherein the connecting element has a connection surface with the prosthesis model and is connected to the 3D implant model, wherein the 3D implant model has a longitudinal axis and wherein the connection surface has a connection axis which represents the direction of insertion of the prosthesis, and wherein the angle α between the longitudinal axis and the connection axis is selected automatically from a plurality of predefined angles α between 140° and 180°. - a correlated 3D X-ray model is provided, in which a measurement dataset of a 3D X-ray image is correlated with a measurement dataset of a three-dimensional optical measurement in respect of geometry, - wherein the first measurement dataset of the 3D X-ray image and the second measurement dataset of the three-dimensional optical measurement of the visible surface comprises a region of the prosthesis that is to be inserted, which includes the jaw and at least parts of the neighbouring teeth (11, 12), - wherein a dataset of at least the surface of the prosthesis is provided as a 3D prosthesis model - wherein the 3D prosthesis model is represented on the display unit in the correct position in the correlated 3D X-ray model and is represented together with it on a display unit, wherein a dataset of the implant is displayed on the display unit as a 3D implant model in the correlated 3D X-ray model and is positioned at least approximately in the 3D X-ray model by input means (4, 5) or automatically, taking into account the 3D prosthesis model which is already represented in the correct position, and the 3D X-ray model, and is further selected preferably either on the basis of type and/or is adjusted in terms of dimensions,