Abutment (1) for the manufacturing of the internal structure of screwed dental prostheses, where said abutment (1) has two functional parts constituted by a base (2, 2b, 2c) whose lower face connects with the implant or transepithelial pillar head and in whose interior there are housing means (8) for the screw (9) head and a curved coping (3, 3b, 3c) joined to the base (2, 2b, 2c) through which the prosthesis orifice is established allowing access to the screw (9) head, where the assembly formed by the base (2, 2b, 2c) and the curved coping (3, 3b, 3c) defines an external surface which has a uniform continuity.
