A methodology for the realization of a functional dental brace for the treatment of facial asymmetry, characterized by the following steps: - tracking of vertical facial aymmetry axis by joining the average orbital point with the apex of the nasal septum on a frontal cephatometric tracing, wherein the frontal cephalometric tracing is generated by a computer; - tracking of pupil axis by drawing a straight line passing approximately through the left side orbital point , for the left medial orbital point , for the right medial orbital point and for the right tide orbital point ; - connection of the point of intersection between the axis of vertical facial aymmetry and the pupil axis with the anatomical menton point ; - measurement of the angle of mandibular asymmetry that the axis of vertical facial aymmetry forms with the straight line passing through the intersection point and the anatomical menton point ; - realisation of a bite which covers the upper arch, having the occluding surface inclined by an angle equal to the angle of mandibular asymmetry , having a flange that measures about one millimeter, on the occluding surface of the portion of the asymmetrical side from the canine up to the molar, in correspondence of the buccal cusps of the lower arch; - tracking a line parallel to the axis of vertical facial symmetry starting from the lower jaw asymmetric side; - measurement of the angle of condylar asymmetry that the parallel line forms with the mandibular inclined ramus medial asymmetric side ; - realization of an anatomical shield In the fornix, to be affixed on the asymmetric side of the bite inclined In the angle of condylar asymmetry . - tracking of vertical facial aymmetry axis by joining the average orbital point with the apex of the nasal septum on a frontal cephatometric tracing, wherein the frontal cephalometric tracing is generated by a computer; - tracking of pupil axis by drawing a straight line passing approximately through the left side orbital point , for the left medial orbital point , for the right medial orbital point and for the right tide orbital point ; - connection of the point of intersection between the axis of vertical facial aymmetry and the pupil axis with the anatomical menton point ; - measurement of the angle of mandibular asymmetry that the axis of vertical facial aymmetry forms with the straight line passing through the intersection point and the anatomical menton point ; - realisation of a bite which covers the upper arch, having the occluding surface inclined by an angle equal to the angle of mandibular asymmetry , having a flange that measures about one millimeter, on the occluding surface of the portion of the asymmetrical side from the canine up to the molar, in correspondence of the buccal cusps of the lower arch; - tracking a line parallel to the axis of vertical facial symmetry starting from the lower jaw asymmetric side; - measurement of the angle of condylar asymmetry that the parallel line forms with the mandibular inclined ramus medial asymmetric side ; - realization of an anatomical shield In the fornix, to be affixed on the asymmetric side of the bite inclined In the angle of condylar asymmetry . <EOS>