APPARATUS FOR TREATING GNATIC MESIAL OCCLUSION

摘要

FIELD: medicine.SUBSTANCE: upper jaw base comprises a saw-cut dividing the base on a front and back sectors coupled by a sector jack-screw. The bases are provided with occlusal onlays on side teeth; the upper jaw base has the onlay on all the premolars, whereas the lower jaw base - on the second premolars and molars; there are parallel adjoining inclination planes extending bottom up and backwards. The saw-cut in the upper jaw base is trapezoid and starts at the level of a distal surface of upper pointed teeth and extends backwards or to the centre of the base and ends with the cross portion at the level of the first premolars. The front and back sectors of the base are coupled by the sector jack-screw perpendicular to the central upper incisors. Besides, the upper jaw base comprises braced lip bandages armed in its back sector. The lower jaw base has a vestibular arch.EFFECT: more effective treatment of gnatic mesial occlusion in adolescents by accelerated front deflection of the front segment of the upper jaw, more effective correction of the reverse cross occlusion.3 dwg