Analysis of the literature showed significant similarities in the etiology and pathogenesis of periodontitis and RA, in clinical and laboratory characteristics, as well as the significance of the relationship of these pathologies in the economic well-being of the country. The economic consequences of RA, leading to a permanent lesion of the musculoskeletal system, are very significant. RAs are one of the main reasons for the temporary disability of the working population in Russia. Its medical

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... nd social significance is due, firstly, to progressive dysfunction of the joints, which leads to a significant reduction in the quality of life of patients; secondly, the defeat of people of working and professional age. Natural is the fact of the deterioration of all vital characteristics of RA patients in combination with periodontal pathology. In this regard, it is relevant to study the dental status, identify its features in RA patients to improve the algorithm for diagnosing and treating periodontal diseases, as well as the rationale for making clinical recommendations for the diagnosis and treatment of rheumatoid arthritis medical measures for diagnosing the disease, the state of medical services: taking primary , dispensary (examination, consultation) and preventive (examination, consultation) of a dentist and updating the order of the Ministry of Health Of the Russian Federation "On approval of the standard of primary health care in rheumatoid arthritis" dated 12.24.2012, №1470n. Key words: periodontitis, rheumatoid arthritis, bone mineral density of the jaws