A jaw implant includes an implant body comprising a top end, a base end, an axial line, an acute-angled long side, an obtuse-angled short side, a body core. An oval opening disposed at the top end comprises an opening edge lying in an opening plane inclined with an angle of inclination of 75° to 45° with respect to the axial line so that the implant body has an axial length on the acute-angled long side longer than on the obtuse-angled short side. An external thread structure comprises a lead comprising a lower side facing the base end, an upper side facing the top end, and a wedge angle disposed between the upper side and the lower side. A bisecting line of the wedge angle and the axial line of the implant body form a tilt angle which is smaller on the acute-angled long side than on the obtuse-angled short side.