Procedure for the manufacture of dental prostheses, in which an impression of the upper jaw and lower jaw is initially made with the teeth and in which the dental technician is then taken in a device called an articulator (1) for the simulation of movements of lower jaw on corresponding supports that house the upper or lower jaw impressions, whereby there the dental prosthesis, under the movement either of the lower jaw impression or normally of the upper jaw impression is molded around mandibular extensions similar to the patient's temporomandibular joints (4), determined by the movement of the patient's lower jaw (4), and duplicates of joint space (21) manufactured therefrom and used as articulator joints (20) and terminated Normally considering the impression of the lower jaw, it is then returned to the dentist, it is inserted rta the patient (4) and is subsequently machined by the dentist, characterized in that the movements made by the patient's lower jaw (4) and the temporomandibular joints (6), guided by a support rod (11) that is held through an upper jaw plate (10) in the upper jaw and through hemispheres (16) associated with a lower jaw plate (15), which are arranged at a distance from each other and forming a triangle with the support rod (11) in the axis of the support stem / temporomandibular joint (6), decoupling the patient's teeth, they are transferred intrabuccally to a plastic material (13) embedded in a registration support (12) associated with the maxillary plate upper (10) as a duplication of articulation space (21) and why using these duplicates of articulation space (21) extrabuccally according to the pantograph principle other duplicates of articulation space are manufactured (21) of each temporomandibular joint (6) and are used in the articulator (1) as articulator articulation (20).Procedimiento para la fabricación de prótesis dental, en el que inicialmente se fabrica una impresión del maxilar superior y del maxilar inferior con los dientes