Figure 1 from: Ripetska O, Mahlovanyy A, Hrynovets I, Chaban T, Hrynovets V, Buchkovska A, Harkov S, Deneha I, Pasko O, Renka M (2020) Clinical study of the efficacy of si-containing polishing paste for the professional hygiene procedures in patients with periodontal disease. Pharmacia 67(1): 17-22. https://doi.org/10.3897/pharmacia.67.e35152

Figure 1 Dynamics of gingival bleeding in patients 30–55 years old with periodontitis (I-stage of heaviness) in the main and control groups. *On the horizontal axis – Repeated r periods of time: 1) -1 month; 2)-6 months; and 3) -12 months. *On the vertical axis: Quantity of periodontal areas with bleeding on probing (%).