RT Journal Article SR Electronic T1 Association of periodontal disease and tooth loss with rheumatoid arthritis in the US population. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 70 OP 76 VO 35 IS 1 A1 Paola de Pablo A1 Thomas Dietrich A1 Timothy E McAlindon YR 2008 UL http://www.jrheum.org/content/35/1/70.abstract AB OBJECTIVE: To test for an association of periodontitis and tooth loss with rheumatoid arthritis (RA). METHODS: The third National Health and Nutrition Examination Survey (NHANES III) is a nationally representative cross-sectional survey of noninstitutionalized civilians. We included participants aged > or = 60 years who had undergone both musculoskeletal and dental examinations. RA was defined based on American College of Rheumatology criteria. Dental examinations quantified decayed and filled surfaces, missing teeth, and periodontitis. Periodontitis was defined as at least 1 site exhibiting both attachment loss and a probing depth of > or = 4 mm. We classified dental health status as (1) no periodontitis, (2) periodontitis, or (3) edentulous (i.e., complete tooth loss). We performed multivariate multinomial logistic regression models with dental health status as the dependent and RA as the independent variables. RESULTS: The sample consisted of 4461 participants, of whom 103 were classified as having RA. Participants with RA had more missing teeth (20 vs 16 teeth; p < 0.001), but less decay (2% vs 4%; p < 0.001) than participants without RA. After adjusting for age, sex, race/ethnicity, and smoking, subjects with RA were more likely to be edentulous [odds ratio (OR) 2.27, 95% confidence interval (CI) 1.56 3.31] and have periodontitis (OR 1.82, 95% CI 1.04 3.20) compared with non-RA subjects. In participants with seropositive RA there was a stronger association with dental health status, in particular with edentulism (OR 4.5, 95% CI 1.2 17). CONCLUSION: RA may be associated with tooth loss and periodontitis.