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The purpose of the study: build and analyze the regression models of computed tomographic parameters necessary to determine the correct shape of dental arches, depending on the odontological and cephalometric parameters for girls with normal occlusion close to orthognathic occlusion and a wide type of face. Materials and methods: for 20 girls with normal occlusion close to the orthognathic bite and with a wide face type, in the license package "Statistica 6.0" developed regression models of linear sizes necessary for constructing the correct shape of dental arches, depending on odontometric and cephalometric indicators. Results: thus, in girls with normal occlusion close to orthognathic occlusion, having a wide type of face, all 18 possible reliable regression models (with a coefficient of determination from 0.620 to 0.973) of the reproduction of individual computed tomographic characteristics of the dental arches of upper and lower dental jaws depending on odonto- and cephalometric parameters were developed and analyzed. Conclusions: the results obtained indicate the need to take into account the type of face when calculating the parameters of dental arches.

Deep, large thermal burns are not limited to local lesions of tissues, they cause significant disruption of all systems and organs of the organism, change in metabolic processes. It is revealed that the primary links in the pathogenesis of burn disease are destruction of the skin, impaired neuroendocrine regulation and significant hemodynamic disorders. The reorganization of structures and impaired lung function, in response to a pathological process in the body, is attracting increasing attention of scientists. The aim of the study was to establish a submicroscopic rearrangement of the alveoli after a thermal lesion for 1 day after the experimental thermal trauma. Grade III burns were applied under ketamine anesthesia with copper plates heated in boiled water to a temperature of 97-1000С. The size of the lesion area was 18-20 % of the epilated surface of the body of rats. An experimental study of the structural components of lung alveoli after burn injury was performed on laboratory white male rats weighing 160-180 g. Euthanasia of rats was performed after ketamine anesthesia by decapitation. In the experiment, the study of the submicroscopic state of the walls of the alveoli of the lungs after thermal trauma was done. It is established that in the stage of shock after the application of burn injury – 1 day, in the alveoli of the respiratory department of the lung, there are adaptive compensatory and initial destructive changes of all structural components of the alveoli. Damage to the ultrastructure of the aerohematical barrier is manifested by intracellular edema and edema of the organelles of the endothelial cells, respiratory and secretory epitheliocytes, and the amount of heterochromatin increases in their deformed nuclei. The basement membrane also has signs of edema, sometimes homogeneous, fuzzy. The decrease in the number of vesicles and micropinocytotic vesicles in endothelial and respiratory epitheliocytes leads to impaired endothelial and alveolar metabolism. Numerous actively phagocytic alveolar macrophages with a well-expressed lysosomal apparatus are found in the alveoli. Initial alternative alterations of the ultrastructure of the components of the air-barrier barrier lead to disruption of gas exchange in the respiratory department of the lungs