Abstract: Apparatus for the correction of the relative position between the maxillary and the mandibular jaws comprises a first guiding element and a second guiding element. The two guiding elements are mounted in a position lateral to the corresponding dental arch by means of anchoring elements. The two guiding elements are initially disengaged from each other and come together to cooperate only from a pre-set intermediary position of closure of the mandibular jaw toward the maxillary jaw. The two guiding elements constructed so that, from the intermediate closure position, they come into reciprocal contact and form contact surfaces with relative sliding movement. Upon closure of the jaws, the cooperating contact between the two guiding elements exerts automatically a push in a direction of the relative displacement of the maxillary jaw and the mandibular jaw for the assuming of the correct relative position between the maxillary jaw and the mandibular jaw.