Abstract: Endosseous dental implant of the type involving a threaded pin which is screwed into the bone cavity and is provided with a hole applied to the part of the implant emerging from the bone, housing a proper device protruding from the dental prosthesis in order to anchor the prosthesis to the threaded pin; onto the top part of the threaded pin exceeding the bone a removable hemispheric cup is applied so that when the threaded pin is in final position, the cup presses onto the surrounding gengiva; the cup being equipped with anchoring devices which firmly connect it to the pin, yet allowing it to be unscrewed from the pin in order to be replaced by the dental prosthesis that will fit the place occupied by the cup in the gengiva around the threaded pin.