ABSTRACT
The impact of SARS-CoV-2 (severe acute respiratory syndrome-related coronavirus-2) on the entire human body causes irreversible changes in all organs and systems. Complications in the form of chronic diseases require the treatment of clinicians in various fields of medicine. Dentists are faced with diseases of the oral mucosa in apparently healthy patients who are not predisposed to them but have undergone COVID-19. Purpose of the study - to assess the impact of the coronavirus infection (COVID-19) on the course of diseases of the oral mucosa. We examined 51 patients aged 20 to 75 who had undergone COVID-19 with various diseases of the oral mucosa. The study used clinical and laboratory methods. The features of the clinical course of certain diseases of the oral mucosa were revealed, the dynamics of the local immune defense of the oral cavity in the post-covid period was determined.