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Periodontal parameters and plaque scores at baseline, as well as at 3 and 6 months after NSPT, according to body mass index (BMI) and periodontal disease status: (a) probing depth (PD), (b) clinical attachment level (CAL), (c) bleeding on probing (BOP), and (d) plaque (Pl) score. Differences were compared by the Friedman test; significant differences for pairwise comparisons were determined by the Wilcoxon matched-pairs signed-rank test.
