CHARACTERISTICS OF THE DIMENSIONAL PARAMETERS OF THE MAXILLARY TEETH AMONG THE POPULATION OF KRASNOYARSK IN THE XVII–XXI CENTURIES

Background. Studies devoted to the analysis of the odontological features of paleoanthropological material and modern population reveal epochal changes in dental structures, as well as ethnic and specific features of the population of individual regions. The study of odontological structures of different epochs allows to obtain information about the reduction and its speed, as well as the prevalence of dental anomalies in individual regions. Aim. To identify the changeability of the values of the dimensional parameters of maxillary teeth of the population of the city of Krasnoyarsk, taking into account the time vector. Materials and methods. The current odontometric study was conducted on the modern population of Krasnoyarsk (n=331), the craniological material of the Pokrovsky Necropolis (XVII century, n=73), and the Vsekhsvyatskiy Necropolis (XVIII­–XIX centuries, n=50). The study was carried out on mesiodistal (MDcor) and vestibulo-oral (VOcor) crown diameters. The modules of teeth crowns (mcor) and the average module of dental crown (mcor M(1-3) (according to the modules of molar crowns) were calculated to characterize the dimensional parameters of teeth crowns in each group in order to determine the general characteristics of the absolute size of the teeth in the jaw. Results. Both in female and male samples, the reduction of mesio-distal and vestibulo-oral diameters of some teeth, and accordingly, the reduction of teeth-crown module was revealed. The reduction of maxillary teeth-crown module among the population of Krasnoyarsk of the XVII–XIX is more marked among women. The crown module of right maxillary canine (13 tooth) reduced by 6.41% among women and 3.03% among men by the XXI century. The crown module of 23 tooth reduced by 6,43 % and 2,77% among women and men respectively. Significant reduction of teeth-crown dimensions and modules of teeth 25, 26, 27 by 4,62%, 3,17 % and 1,55% is typical for women, whereas this tendency is not specific to men. Conclusions. The analysis of the variability of maxillary teeth-crown modules confirmed the ongoing processes of teeth reduction. The obtained dimensions of the average maxillary teeth-crown module reveal the microdontia in females and mesodontia in males.