Method comprising the modelling of the positions of the implants placed in the patient's mouth in order to calculate the program for milling the structure of the prosthesis, which can be coupled onto said implants, where said operation of modelling the implants comprises the following steps: - placing posts, which can be detected by X-ray, on the implants in the patient's mouth； - performing a CAT scan of the patient's mouth with the posts； - converting de CAT result into a three-dimensional computer model for the CAD/CAM manipulation thereof； - defining the posts in the computer model； - CAD/CAM modelling of the structure on the computer model with the defined posts； - generating a file containing positions and orientations for calculating the structure milling program.
