METHOD FOR DETERMINING CENTRAL INTERRELATIONS OF JAWS IN CASE OF COMPLETE EDENTULISM COMPLICATED BY LOWER JAW LATERAL DISPLACEMENT Russian patent published in 2017 - IPC A61B5/107 

FIELD: medicine.

SUBSTANCE: after lower jaw lateral displacement diagnosis and prior to prosthesis, masticatory muscles are trained for 3-5 weeks with lower jaw centration using individual monoblock trainer containing occlusal parts, buccal and lingual walls in the form of beads, a hole for breathing. At that, occlusal parts for the upper and lower teeth are made on individually manufactured models based on silicone casts plastered in the articulator on the bite blocks. The beads are formed to the equator at the first degree of teeth abrasion, to their neck - at the second degree, to the transitional fold - at the third degree of abrasion and in the absence of teeth, and in case of lower jaw displacement of 3 mm and more in lateral direction on the internal surface opposite to lower jaw displacement, the lingual wall has a cushioned surface. After adaptation and masticatory muscles myotatic reflex restructuring, prosthesis installation begins, for which the face cosmetic center is re-marked by applying points in the middle between the brow beginnings (oph), on the skin at the nasal septum base in the middle (sn), the chin center is determined. The vestibular part of the bite block is formed based on the contours of face soft tissues, the upper occlusal rim height is determined and the occlusal (prosthetic) plane is formed, the interalveolar height is determined. After this, central jaws sagittal and vertical interrelation is determined and fixed based on the face cosmetic center, and transversal chin position is set based on the face cosmetic center.

EFFECT: method allows to prevent mobile lower jaw lateral displacement and to ensure stable normal operation of TMJ due to correct spatial arrangement of the mobile lower jaw and myotatic reflex restructuring in transversal direction in the maxillofacial complex with joint heads central position in the gloenoid fossa.

2 cl, 11 dwg, 1 ex