METHOD OF COMPUTER DIAGNOSTICS OF THE MORPHOFUNCTIONAL STATE OF THE DENTOALVEOLAR APPARATUS IN ORTHODONTIC PATIENTS Russian patent published in 2023 - IPC A61B6/14 A61B6/03 A61B5/107 A61B8/13 A61C19/04 

FIELD: medicine; dentistry and radiology.

SUBSTANCE: maxillofacial region is scanned using cone-beam computed tomography with a resolution of 17×15 cm in natural occlusion. The anatomical and functional characteristics of the respiratory tract is determined. As the upper and lower boundaries of the studied maxillofacial region, the following bone landmarks are used: the plane of the upper jaw passing through the top of the anterior nasal spine (ANS) and the posterior nasal spine (PNS), and the plane of the lower jaw passing through the most protruding point of the angle of the mandible (Go) and the lowest point on the lower contour of the body of the lower jaw at the site of the symphysis (Me), until they intersect with the posterior pharyngeal wall in the sagittal section. The walls of the pharynx are chosen as the anterior, posterior and lateral boundaries of the region under study. Three-dimensional visualization and subsequent measurement of the volume of the oropharynx is carried out in a program for performing 3D cephalometric calculations. When the values of the volume of the oropharynx are about 12374–17136 mm³ morphofunctional state of the upper respiratory tract is considered normal. When the volume of the oropharynx is less than 12374 mm³ the presence of a pathological posterior position of the lower jaw is determined.

EFFECT: method makes it possible to increase the accuracy and information content of diagnosing the morphofunctional state of the dentoalveolar apparatus when planning orthodontic treatment in patients with dentoalveolar anomalies.

1 cl, 1 ex