Abstract
Aims
To study the association between periodontitis, tooth loss, and rheumatoid arthritis by using a large national dataset.
Materials and Methods
An observational cross-sectional study was performed using the National Health and Nutrition Examination Survey (NHANES) cycles (2009-2014). Rheumatoid arthritis status was detected by a questionnaire. Periodontal status was assigned based on clinical attachment level and periodontal pocket depth. Dentition status was assessed by the number of permanent teeth observed. We examined the association between rheumatoid arthritis as exposure and moderate/severe periodontitis and non-functional dentition as outcomes. We progressively adjusted our models for different sets of potential confounders.
Results
Moderate/severe periodontitis was more prevalent in participants reporting rheumatoid arthritis (53% vs. 41.5%, p= 0.0003). Non-functional dentition was more prevalent in participants with rheumatoid arthritis (41% vs. 15.5%, p= 0.0001). The fully adjusted model showed participants with rheumatoid arthritis had higher odds of having a non-functional dentition (Odds Ratio 1.8, 95% CI 1.3-2.3, p= 0.0001), but no association with moderate/severe periodontitis (Prevalence Ratio 1.01, 95% CI 0.9-1.1, p= 0.9).
Conclusion
Rheumatoid arthritis was associated with a higher likelihood of having non-functional dentition but did not show an association with periodontitis after adjustments of the risk factors to control their confounding effect.
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