Systemic Implications of Apical Periodontitis and Inflammation
Summary
Apical periodontitis is a chronic inflammatory condition of the periapical tissues that arises from persistent microbial infection within the root canal system. Beyond its local manifestations, accumulating evidence indicates that the immune response and microbial by-products associated with apical lesions can influence distant organ systems. Key pathways include bacteraemia, sustained elevation of pro-inflammatory cytokines, oxidative stress and disruption of mucosal barriers. These mechanisms have been linked to a heightened risk of atherosclerosis, impaired glycaemic control in diabetes, altered gut microbial composition and adverse outcomes in autoimmune and pregnancy-related disorders. The systemic burden of low-grade inflammation driven by apical lesions may therefore contribute to the pathogenesis or exacerbation of cardiovascular disease, metabolic dysregulation and immune-mediated conditions. Understanding these interconnections offers both a global perspective on oral-systemic health and practical implications for multidisciplinary management, emphasising the importance of timely diagnosis and effective endodontic therapy in mitigating wider health risks.
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Systemic Implications of Apical Periodontitis and Inflammation publication trend
The graph below shows the total number of articles in systemic implications of apical periodontitis and inflammation across all publications each year (not limited to Nature Index journals).
Technical terms
Apical periodontitis: Chronic inflammation of tissues surrounding the apex of a tooth root, typically resulting from bacterial infection within the pulp chamber.
Systemic inflammation: A widespread immune response characterised by elevated circulating cytokines and acute-phase proteins that can affect multiple organ systems.
Gut microbiota dysbiosis: An imbalance in the composition or function of the intestinal microbial community that may alter metabolic and immune homeostasis.
Bacteraemia: The presence of viable bacteria in the bloodstream, which can occur transiently or persistently following mucosal or dental infections.
Biomarkers: Measurable indicators of biological processes, such as cytokines or oxidative metabolites, used to assess disease activity or systemic impact.
References
- Unveiling the oral-gut connection: chronic apical periodontitis accelerates atherosclerosis via gut microbiota dysbiosis and altered metabolites in apoE−/− Mice on a high-fat diet. International Journal of Oral Science (2024).
- Prevalence of apical periodontitis in patients with autoimmune diseases: A case‐control study. International Endodontic Journal (2023).
- Is there any association between the presence of biomarkers and apical periodontitis? A systematic review. Frontiers in Immunology (2024).
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