Regression models of the area of the soft palate and tongue in young men and young women with an orthognathic bite without and taking into account the type of face depending on teleroentgenometric indicators of the upper respiratory tract

Abstract

The prevalence of pathologies related to the soft palate and its surrounding structures is a serious challenge for medicine. Sleep apnea and other diseases directly related to this anatomical region pose a threat not only due to the actual cause of deaths, but also complications of concomitant diseases. In this regard, the definition of normative indicators of the upper respiratory tract, in particular the soft palate and its surrounding structures, is a relevant topic for study. The purpose of the work is to build and analyze the regression models of the area of the soft palate and tongue in young men and young women with an orthognathic bite without and taking into account the type of face, depending on the features of teleroentgenometric indicators of the upper respiratory tract. With the help of the licensed medical software OnyxCeph3™, version 3DPro and the diagnostic program "UniqCeph", a cephalometric analysis of lateral teleroentgenograms of 49 young men and 76 young women with an orthognathic bite and the absence of upper respiratory tract pathology was performed (primary teleroentgenograms were obtained from the database of the Research Center and Department of Pediatric Dentistry, National Pirogov Memorial Medical University, Vinnytsia). Face types in young men and young women were determined using the Garson index. Regression models of the area of the soft palate and tongue depending on teleroentgenometric indicators of the upper respiratory tract were built using the license package "Statistica 6.0". In Ukrainian young women with an orthognathic bite, regardless of face type, with very wide and wide face types, all possible models of the area of the soft palate and tongue were built depending on teleroentgenometric indicators of the upper respiratory tract with a coefficient of determination (R2 ) greater than 0.5 (R2= from 0.682 to 0.937, p<0.001), ), which most often include the thickness of the soft palate and the length of the soft palate (42.9 % each), tongue height and tongue length (30.0% each), the value of the position of the hyoid bone relative to the vertical mandibular plane and the angle of inclination of the soft palate (20.0 % each). In Ukrainian young men with an orthognathic bite without taking into account the type of face and with a wide face type, all possible models of the area of the soft palate and tongue were also built depending on teleroentgenometric indicators of the upper respiratory tract with a coefficient of determination greater than 0.5 (R2= from 0.562 to 0.925, p<0.001), which most often include the thickness of the soft palate and the length of the soft palate (33.3 % each).