Abstract: Objective To investigate the oral health status in hospitalized patients with rheumatoid autoimmune disease through epidemiological investigation methods, so as to provide basis for the prevention and treatment of their oral diseases. Methods 309 patients who were patients with rheumatoid autoimmune disease of the Shengjing Affiliated Hospital of China Medical University received oral specialist examinations and then filled in questionnaires. The data were statistically analyzed with SPSS software. Results Rheumatoid autoimmune patients with healthy oral conditions were less than 4%. Periodontitis prevalence was as high as 91.9%, and the rate of dental caries occurrence was 67.2%. Oral hygiene status was significantly affected by many factors such as gender, age, education, smoking habits and so on. In addition, osteoarthritis, dermatomyositis and rheumatoid arthritis patients were more likely to suffer from periodontitis. And patients with Sjgrens syndrome showed the highest dental caries prevalence of all the investigated rheumatoid autoimmune disease patients. Conclusion Oral health is related to rheumatoid autoimmune diseases. Reasons for the bad oral conditions of patients with rheumatoid autoimmune disease should be analyzed from various perspectives, and active prevention measures should be taken.

Key words: rheumatoid autoimmune disease, oral health, oral hygiene