A bone implant for use as a filler for correcting an incorrect position of a bone in the field of dysgnathia, wherein the bone has a first bone portion and a second bone portion that have been separated from each other by a cut and are spaced apart by a gap, the bone implant having a first portion for attachment to the first bone portion of the bone and a second portion for attachment to the second bone portion of the bone, the bone implant being prepared so that, when fixed to the bone, it orients the first bone portion and the second bone portion relative to each other and keeps said portions at a distance from each other, the bone implant having a geometry and being adapted such that the bone implant can be inserted in the gap between the first bone portion and the second bone portion so forcing a predetermined orientation of the second bone portion relative to the first bone portion is possible, wherein the first portion is configured for abutting the first bone portion and the second portion is configured for abutting the second bone portion, the first portion being arranged opposite the second portion, wherein the first portion is formed on a first surface of the bone implant and the second portion is formed on a second surface of the bone implant, wherein the bone implant has a third surface on a lower side and a fourth surface on an upper side, which are configured to fit into the contour of the bone when inserted, wherein the first surface and the second surface are inclined to each other, so that by inserting the bone implant both spacing of the two bone portions (3, 5) and a relative rotation can be achieved, wherein the bone implant has the shape of a '1' or the shape of a hook with a pointed projection protruding from the second surface, the projection having an inner side and an outer side, wherein the outer side of the projection is formed by the third surface, wherein the bone implant is configured to allow the second bone portion to abut the second surface and the inner side of the projection in the inserted state. wherein the bone has a first bone portion and a second bone portion that have been separated from each other by a cut and are spaced apart by a gap, the bone implant having a first portion for attachment to the first bone portion of the bone and a second portion for attachment to the second bone portion of the bone, the bone implant being prepared so that, when fixed to the bone, it orients the first bone portion and the second bone portion relative to each other and keeps said portions at a distance from each other, the bone implant having a geometry and being adapted such that the bone implant can be inserted in the gap between the first bone portion and the second bone portion so forcing a predetermined orientation of the second bone portion relative to the first bone portion is possible, wherein the first portion is configured for abutting the first bone portion and the second portion is configured for abutting the second bone portion, the first portion being arranged opposite the second portion, wherein the first portion is formed on a first surface of the bone implant and the second portion is formed on a second surface of the bone implant, wherein the bone implant has a third surface on a lower side and a fourth surface on an upper side, which are configured to fit into the contour of the bone when inserted, wherein the first surface and the second surface are inclined to each other, so that by inserting the bone implant both spacing of the two bone portions (3, 5) and a relative rotation can be achieved, wherein the bone implant has the shape of a '1' or the shape of a hook with a pointed projection protruding from the second surface, the projection having an inner side and an outer side, wherein the outer side of the projection is formed by the third surface, wherein the bone implant is configured to allow the second bone portion to abut the second surface and the inner side of the projection in the inserted state.