This invention refers to a device exploitable within the scope of dental implantology, with specific reference to the set up and to the installation of a multi-teeth fixed prosthesis, either partial or total. The said invention specifically concerns a connection device (1) between a dental implant and the prosthesis. In particular, this invention concerns a connection device (1) including a bearing element (2) and a prosthesis connecting element (3, 3&prime), with the said connecting element (3, 3&prime) being matchable with the aforementioned bearing element (2), wherein the bearing element (2) includes a base portion (7) on which a conical portion (8) is further positioned and is characterized by the fact that between the base portion (7) and the conical portion (8) a shoulder (12) with a stop portion (13) is formed to prevent relative rotation of the connecting element (3, 3&prime) with respect to the bearing element (2).
