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Figure 3. Periodontal consortia associated with periodontal diseases. (C) The frequency (%) of periodontal bacteria in combinations was computed for 413 individuals presenting probing pocket depth (PPD) and bleeding on probing (BOP) > and ≤ the median values (PPD=2.27 mm; % sites BOP=20.7). The consortia Aa + Fa + Dp was the only one significantly more prevalent in patients with high number of deep pockets (χ2=37, phi=0.501, p<0.001) and bleeding sites (χ2=31, phi=0.458, p<0.001) compared to healthier individuals.