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Systematic Reviews
Copyright: ©Author(s) 2026.
World J Meta-Anal. Sep 18, 2026; 14(3): 121388
Published online Sep 18, 2026. doi: 10.13105/wjma.121388
Figure 1
Figure 1  Flow diagram of study selection according to PRISMA.
Figure 2
Figure 2 Forest plot. A: Forest plot of pooled effect estimates for gut microbial alpha diversity in periodontitis; B: Forest plot of pooled odds ratios for altered Firmicutes to Bacteroidetes ratio; C: Forest plot of pooled effect estimates for serum C-reactive protein levels.
Figure 3
Figure 3 Proposed hypothetical mechanism linking gut microbiota dysbiosis and periodontal inflammation. CRP: C-reactive protein; IL-6: Interleukin-6; TNF-α: Tumor necrosis factor-α; IL-17: Interleukin-17.


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