Abstract
The problem of providing dental care to patients with cancer has been and remains very relevant. According to the National Cancer Institute, in Ukraine there are more than a million people suffering from cancer. Every 3-4 men and every fifth woman are at risk of developing cancer. Studies of the state of the oral cavity in this category of patients have established a high prevalence of dental diseases and, as a result, a significant need for dental care (1, 2). There is a direct correlation between the state of oral hygiene and the severity of cancer (3, 4).The results confirm that the destruction of the infection in the root canal leads to the regeneration of periapical bone damage. The size of the lesion does not affect the treatment tactics. Large-scale periapical inflammatory processes are amenable to therapeutic treatment. Chemotherapy has been shown to significantly affect the condition of the oral cavity and exacerbate chronic inflammatory processes. This issue is subject to further study and development of special dental treatment for cancer patients.