Abstract: Structure enabling continuous angular adjustment for fixing a single dental device to an implant. The structure is formed from a ringwise tiltable threaded shank and a fixing unit for fixing the threaded shank to the implant. The fixing element is formed from an insertion piece and an intermediate piece. The lower end of threaded shank is placed between the end of the insertion piece and the upper end of the intermediate piece. A fixing nut is mounted on the threaded shank. The intermediate piece and the insertion piece are secured to each other by a joining element. The joining element is provided with lower corners and upper corners. A coupling body is installed on the joining element. A mould or the frame is fixed to the coupling body by the fixing nut.

Abstract: The impression jig comprises a main body having an inner channel and a head having an inner channel and adapted for being releasably attached to said main body, wherein the inner channel of the main body is provided with threads and at its lower end portion, with an inner positioning surface, and wherein the inner channel of the head is provided with threads and at its upper end portion, with an inner positioning surface. The impression jig further comprises a tubular screw adapted for guiding through the inner channel of the main body and the inner channel of the head, said tubular screw having an inner channel, and wherein the outer surface of the tubular screw is provided with first threads at an upper section thereof and with second threads at a predetermined distance from a lower section thereof.