Proceedings of the International scientific and practical conference ―Science at the Frontier of Civilizations‖ (March 16-18, 2026) / Publisher website: www.naukainfo.com. – Helsinki, Finland, 2026. - 145 p.

49 MEDICAL SCIENCES AND PUBLIC HEALTH UDC 616.314-089.843:616.314-007.272:616-006-06:615.849 Demianchuk Yurii PhD student, Department of Therapeutic Dentistry, Uzhhorod National University, Uzhhorod, Ukraine Baleha Maryana PhD, Associate Professor, Department of Therapeutic Dentistry Uzhhorod National University, Uzhhorod, Ukraine PREVALENCE OF PARTIAL EDENTULISM IN PATIENTS WITH A HISTORY OF CANCER In patients with a history of cancer, the condition of the dentoalveolar system is of particular importance for planning dental implantation, since previous oncological treatment, especially radiotherapy, may be associated with long-term trophic disturbances of oral tissues, hyposalivation, deterioration of oral hygiene, progression of periodontal disease, and an increased risk of tooth loss [1-3]. Keywords: partial edentulism, Kennedy classification, dental implantation, periodontal tissues, radiotherapy, history of cancer. The aim of the study was to evaluate the prevalence and structure of dental arch defects in patients with a history of cancer at the stage of preparation for dental