Peculiarities of correlations of teleradiometric indicators according to the Tweed method with the sizes of teeth and dental arches in Ukrainian young men and young women with physiological occlusion without taking into account the type of face

Annotation. The study of the relationship between teleradiometric parameters and morphological characteristics of the dentofacial system is important for understanding the patterns of development and harmony of the bite. Determining these correlations in young people allows us to improve approaches to the diagnosis and prediction of orthodontic deviations, which, in turn, contributes to the individualization of treatment. Given the growing need for orthodontic correction and increased attention to the aesthetic and functional aspects of the dentofacial system, such studies are relevant for practical dentistry and orthodontics. The aim of the study is to establish the features of the relationship between teleradiometric parameters according to the Tweed method and the sizes of teeth and dental arches in Ukrainian young men and young women with physiological occlusion. An analysis of the correlations of morphometric teleradiometric parameters determined by the Tweed method, teeth and dental arches obtained from primary teleradiograms and computer tomograms of 41 Ukrainian young men and 68 Ukrainian young women (taken from the data bank of the Department of Pediatric Dentistry and the Research Center of the National Pirogov Memorial Medical University, Vinnytsya) was carried out. The correlations were assessed in the «Statistica 6.0» license package using non-parametric Spearman statistics. As a result of the analysis of reliable and average strength unreliable correlations between teleradiometric indicators according to the Tweed method with the sizes of teeth and dental arches, the following was established: in young men – 5.92 % of similar relationships with the sizes of teeth of the upper jaw (mainly reliable direct average strength between the value of the ANB_T angle, the PFH distance and the Wits index and the sizes of incisors and canines), 3.67 % with the sizes of teeth of the lower jaw (mainly reliable inverse average strength between the value of the Wits index and the sizes of incisors and canines) and 7.54 % with the sizes of dental arches (mainly reliable direct and inverse average strength between the value of the FMIA angle and the distances DL_C, GL_1 and DL_S; between the value of the IMPA angle and the distances DL_C, DL_S and dapx_46; between the value of the Ls1u_Ls distance and the distances 33_43Apx, mapx_46 and dapx_46; between the value of the Wits index and the distances DL_S, 33_43Apx and mapx_46); in young women – 4.69 % of similar relationships with the sizes of the teeth of the upper jaw (reliable direct and inverse, mostly weak, between the magnitude of the angles SNB_T and POr_OcP, the Wits index and the AFH_PFH ratio and the sizes of the incisors, canines and first premolars), 5.10 % with the sizes of the teeth of the lower jaw (reliable, mostly inverse, weak and medium strength between the magnitude of the angles IMPA, POr_OcP and the distance Pog_Pog' and the sizes of the incisors), 10.71 % with the sizes of the dental arches (mostly reliable direct lines of medium strength between the distance Z and the distances PonM, 13_23Bugr, VestBM, 33_43Apx, mapx_46 and dapx_46). Thus, the results obtained indicate both the peculiarities and gender differences in the relationships between teleradiometric indicators according to the Tweed method and computed tomography dimensions of teeth and dental arches in Ukrainian young men and young women with physiological occlusion without taking into account facial type.