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. 2016 Mar 2:7:80.
doi: 10.3389/fimmu.2016.00080. eCollection 2016.

Hand to Mouth: A Systematic Review and Meta-Analysis of the Association between Rheumatoid Arthritis and Periodontitis

Nicholas R Fuggle  1 , Toby O Smith  2 , Arvind Kaul  3 , Nidhi Sofat  4
Affiliations

Hand to Mouth: A Systematic Review and Meta-Analysis of the Association between Rheumatoid Arthritis and Periodontitis

Nicholas R Fuggle et al. Front Immunol. .

Abstract

Background: Rheumatoid arthritis (RA) and periodontitis are both chronic inflammatory diseases, which demonstrate similarities in terms of mechanism, histopathology, and demography. An association between these conditions has been demonstrated previously but has been called into question more recently.

Methods: The published databases, such as MEDLINE, EMBASE, and PsycINFO, were searched using search terms related to RA and periodontitis. Articles were selected if they included data on the number of people with RA diagnosed with periodontitis (or periodontal disease parameters) compared to a control comparison group. Review articles, case reports, animal model studies, non-English language, and articles with unavailable abstracts were excluded. Data were extracted, critically appraised using the Downs and Black tool, and a random-effect Mantel-Haenszel meta-analysis was performed.

Results: Twenty-one papers met the eligibility criteria and provided data for the meta-analysis; 17 studies (including a total of 153,492 participants) comparing RA to healthy controls and 4 (including a total of 1378 participants) comparing RA to osteoarthritis (OA). There was a significantly increased risk of periodontitis in people with RA compared to healthy controls (relative risk: 1.13; 95% CI: 1.04, 1.23; p = 0.006; N = 153,277) with a significantly raised mean probing depth, risk of bleeding on probing (BOP), and absolute value of clinical attachment loss in those with RA. When comparing RA and OA, there was no significant difference in the prevalence of periodontitis; however, the risk of BOP was greater in OA than RA.

Conclusion: A significant association between RA and periodontitis is supported by the results of our systematic review and meta-analysis of studies comparing RA to healthy controls. In our meta-analysis, however, this is not replicated when comparing RA to OA controls.

Keywords: inflammatory arthritis; meta-analysis; periodontal disease; periodontitis; rheumatoid arthritis.

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Figures

Figure 1
Figure 1
PRISMA flow-chart depicting the results of the search strategy.
Figure 2
Figure 2
Forest-plot representing risk ratio of periodontitis between patients with RA and healthy control comparisons.
Figure 3
Figure 3
Forest-plot representing risk ratio of periodontitis between patients with RA and OA participants.
See this image and copyright information in PMC

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