Process for manufacturing parts of dentures with digital data detection surface area residual tooth, three-dimensional configuration of at least a part of dental prostheses area residual tooth including data detected surface area residual tooth and processing data forma, and a partial or complete manufacture of at least a part of dental prostheses based on the surface data and shape data, characterized in that for setting primary crowns (23) on their game data line friction (26) present geometrically and visible on a screen is selected, wherein the outer side of the primary crown (23) surfaces (27, 31) smooth running parallel or conically relative to the insertion direction, because then a point (28) of the friction line is marked, because from this point an area of action (29) is selected, that is, a width from place to change, because in the next stage is pulled up, down, in or out at this point on the area selected action, and because of this a new topography primary corona occurs keeping automatically this parallelism of the surfaces (27) relative to the smooth insertion direction or maintaining the cone angle (30) present on the surfaces (31) smooth.Procedimiento para la fabricación de partes de prótesis dentales con detección digital de los datos de superficie de una zona de diente residual, configuración tridimensional de al menos una parte de prótesis dental para la zona de diente residual incluyendo los datos de superficie detectados de la zona de diente residual y elaboración de datos de forma correspondientes, y una fabricación parcial o completa de al menos una parte de prótesis dental en base a los datos de superficie y datos de forma, caracterizado porque para la configuración de coronas primarias (23) sobre su juego de datos se selecciona una línea de fricción (26) presente geométricamente y visible sobre una pantalla, presentando el lado exterior de las coronas primarias (23) superficies (27, 31) lisas que discurren en paralelo o cónicamente respec
