fig3 the diameter of the helical body 101 increases from the bottom of the implant 1 to the top of the implant 1 the outer edges 1011 of the helical body 101 are formed as sharp edges and thus render the windings of the helical body 101 to be shaped as blades on the inside circumference of the helical body 101 in the depicted embodiment four support struts 102 are provided they are connected or affixed to the windings of the helical body 101 as can be derived from the view in fig4 the struts 102 have a wedge shape and are spaced from each other along the inner circumference of the helical body 101 thereby a thread basket is formed by the helical body 101 and the struts 102 in that basket openings 103 between the windings of the helical body 101 and the struts 102 are formed at the inner side of the struts 102 grooves are provided which form an internal thread 1021 in the depicted embodiment the slope of the internal thread 102 differs from the slope of the windings of the helical body 101 as four struts 102 of wedge shape are provided and are spaced from each other a screw driver may be inserted into the gaps between the struts 102 and the implant 10 may thus be turned the prosthetics pillar 11 as shown in fig2 consists of a head portion 111 the top of which is formed as a screw head 1111 at the bottom of the head 111 a conical section 112 is provided the diameter of the conical section 112 decreases from the head 111 towards a shaft section 113 adjacent to the conical section 112 in the shaft section 113 longitudinal grooves 1131 are introduced into.