Production of denture parts is effected by using digitally-obtained data of the corresponding tooth space and using such surface and mold data to design the three-dimensional required mold, such procedure taking into consideration a number of specified aspects. Independent claims are also included for: (1) designing web constructions between the tooth stumps and production of the corresponding mold data (2) graphically representing surface data obtained from a bite impression and, using a gypsum model, forming the denture part (3) creating the 3-D molding from a combination of geometrical data (4) creating an implant stud from the surface data (5) applying on an implant stud a wax model of an abutment using a scanning process controlled by the data so as to form an abutment with jointed upper and lower sides (6) applying a mark to a graphic representation of the surface data and constructing the mold data for the denture part based on the surface data and taking into consideration the mark (7) making a rough assembly on the gypsum model using wax, again scanning the assembly and then accurately correlating the two scans (8) distinguishing variations in the wall thickness of the restoration in a visual display by color gradations or by partially rendering transparent (9) scanning a cavity to detect the edges, modelling in wax, scanning again, superimposing the two data sets by 3-D matching and deriving a differential data set (10) proceeding as per the process immediately above but then obtaining the differential data set by overlaying the two scans and filtering out the deviation relevant to the inlay (11) using a volume differential formation (12) determining the position of implant studs or screws in a gypsum model by scanning, importing the geometrical data of the implant studs and matching it with the 3-D-determined data and displaying visually and, finally, constructing crown or bridge based on the previous steps and transferring to a CNC machine (13) arranging
