ABSTRACT : Analyzing the literature on the impact of occupational factors of various chemical industries on the formation of dental pathology, we can state that the prevalence of diseases of hard tissues of the teeth, periodontal tissues and oral mucosa in workers of these industries are more common than in the control group, where the effect of chemicals on oral organs missing. The bleeding index is 2.02 ± 0.24 points. The examination showed that patients had periodontal tissue lesions corresponding to moderate periodontitis, clinically manifested by symptomatic gingivitis and bleeding phenomena.