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The aim of research - to identify the features of the biomechanical parameters of the arteries of the brain in the II period of adulthood. Materials and methods. The samples of anterior (ACA), middle (MCA), posterior cerebral (PCA), posterior connective (PCoA), basilar arteries (BA) and intracranial parts of vertebral arteries (VA) seized at autopsy of 40 corpses of men andwomen aged 35-60 years were studied. In the longitudinal tension experiment on the tensile testing machine Tira Test studied the overall strength, tensile strength, maximum relative deformation and young's modulus of walls.Results. The paper describes the average values and variability parameters of the studied biomechanical parameters of arteries. The results of the comparative analysis with the average values typical for the population of adults aged 21-90 years are presented. Conclusion. Biomechanical properties of cerebral arteries are characterized by significant variability. The least changeable is the overall strength of the artery wall. The data obtained differ from the average values typical for the population of adults aged 21-90 years. The greatest differences were found for the ultimate strength of the vascular wall. In the II period of adulthood, this parameter in MCA, PCA, BA, ACA and BA is 8-15% more, and in PCoA is 22% less than the average value.

Uneven growth, leading to an abnormal ratio of the upper and lower jaws, underlies the development of various occlusion issues . The respective literature holds it that the dental anomalies variability in different areas ranges from 11% to 90%. The high prevalence of occlusion issues should be attributed primarily to the difficulty associated with their correct and timely diagnostics . The research carried out to identify occlusion anomalies reveal the lack of a decrease trend, which means there are stable mechanisms triggering the development of this pathology, which keep its prevalence at a stable level . Besides, this pathology is complicated with occlusive and musculo-articular disorders .

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