Procedure for the manufacture of a denture (10), in which the denture has a base element (20) that supports at least two raw teeth (40, 40 ', 40' '), with the stages of : to. Preparation (100) of the digital image of a dental situation, b. Computer-assisted generation (200) of a digital model of the dentures based on the digital image, or using and selecting digital representations (41, 41 ', 41' ') of prefabricated dental teeth, or in which the pieces Prefabricated raw dental teeth have a defined length dimension, c. calculation (300) of a set of length difference data prepared from the defined length dimension and an insertion depth (74) of the at least two prefabricated raw dental pieces (40, 40 ', 40' ') in the base element (20), d. construction (400) of a digital image (51) of a negative mold (50), so that the at least two prefabricated blanks form the positive, in which the negative mold (50) encodes the position of the minus two prefabricated raw dental pieces (40, 40 ', 40' ') on the base element (20), e. preparation (500) by machining the negative mold (50) by the digital image (51) of the negative mold, f. insertion (600) of the prefabricated blanks (40, 40 ', 40' ') into the negative mold (20), g. shortening (700) by computer-assisted machining of the length dimension of prefabricated blanks (40, 40 ', 40' ') from a basal side based on the set of length difference data (72) for manufacture of shortened raw teeth, h. connection (800) of the base element (20) and the raw dental pieces shortened to the dentures (10).Procedimiento para la fabricación de una dentadura postiza (10), en el que la dentadura postiza presenta un elemento de base (20) que soporta al menos dos piezas dentales en bruto (40, 40', 40''), con las etapas de: a. preparación (100) de la imagen digital de una situación dental, b. generación (200) asistida por ordenador de un modelo digital de la dentadura postiza basado en la imagen digital, o utilizando y seleccionando representaciones digi