The association between rheumatoid arthritis and periodontal disease in a population-based cross-sectional case-control study

BACKGROUND: The association between rheumatoid arthritis (RA) and periodontitis remains unclear. METHODS: = 249). A dental examination including a panoramic radiograph was performed on all participants. All individuals with RA were examined and medical records were reviewed by a rheumatologist. In the control group, none of the participants presented with symptoms of RA and their medical records were also negative. CONCLUSION: RA was associated a diagnosis of periodontitis.