Abstract: An orthodontic appliance has sliding rods for the treatment of a lower jaw that is offset relative to the upper jaw. A sleeve is inserted between opposite ends of the tow rods, each of which being associated with one of the jaws. The second rod is screwed into the sleeve at one end, while the first rod is slidably mounted in the sleeve at the opposite end, with the adjustment of the position of the second rod relative to the sleeve being made by screwing and unscrewing.

Abstract: The invention relates to an orthodontic appliance having sliding rods for the treatment of a lower jaw that is offset relative to the upper jaw. A sleeve is inserted between the opposite ends of two rods, each of which is associated with one of the jaws. The second rod is screwed into the sleeve at one end, while the first rod is slidably mounted in said sleeve at the opposite end. The sleeve includes a means for spacing adjustment, which is capable of adjusting the position of the second rod relative to the sleeve by screwing and unscrewing.

Abstract: The invention concerns a removable orthodontic apparatus with rods used in orthodontics to induce the projection of the lower jaw. The apparatus is characterised in that rods (4, 10) are fixed to a metal frame with a wedge shaped like a ball-hook passing through a tube (7) welded on the metal frame (2, 3, 15) of the apparatus. Said links are characterised in that they consist of a tube comprising at its end a flat surface, for example perpendicular to the axis of the tube and perforated with an eyelet through which passes the ball-hook.