Table 2.

Relationship of differences between pre- and post-treatment values of clinical parameters with representative bacterial species in the oral microbiota in patients (n = 72) with periodontal disease.

Selected Oral Microbiota Species	∆PI (%)	∆BOP (%)	∆PPD (Mean; mm)
Porphyromonas gingivalis	0.01 (0.94)	−0.07 (0.55)	−0.001 (0.98)
Prevotella intermedia	0.09 (0.44)	−0.19 (0.11)	−0.07 (0.57)
Fusobacterium nucleatum subsp. nucleatum	0.08 (0.53)	−0.04 (0.72)	−0.02 (0.86)
Aggregatibacter actinomycetemcomitans	0.05 (0.69)	−0.03 (0.80)	−0.07 (0.51)

Data are presented as correlation coefficients (p-values). PI: plaque index; BOP: bleeding on probing; PPD: probing pocket depth.