Abstract
The aim of this study was to assess the impact of lockdown due to the coronavirus COVID-19 pandemic on the periodontal status of patients with periodontitis in supportive periodontal therapy. A retrospective analysis of patients affected by periodontitis stage III-IV-grade A, B, and C, who had their supportive periodontal therapy to September 2020, after a period of 6 months from the planned maintenance recall (March 2020) was performed. Clinical parameters full-mouth plaque score (FMPS), full-mouth bleeding score (FMBS), and probing depth (PD) were evaluated. Patients were assigned to three groups: A (nonsmokers); B (< 10 cigarettes/day); and C (> 10 cigarettes/day). Statistical analysis was used to compare intra-group and inter-group differences. In total, 55 subjects with the mean age of 47.7 ± 7.0 years were enrolled. The number of participants in group A and group B decreased, respectively, from 25 (45.5%) to 20 (36.4%) and from 17 (30.9%) to 13 (23.6%). The C group increased from 13 (23.6%) to 22 (40.0%). A statistically significant increase in mean FMPS was recorded in group A (from 22.5 ± 3.5 to 30.0 ± 28.3; P < .0001); group B (from 22.5 ± 12.7 to 42.5 ± 3.5; P < .0001); and group C (from 22.5 ± 25.5 to 42.5 ± 10.6; P < .0001). A statistically significant increase in mean FMBS was recorded in group A (from 15.0 ± 7.1 to 25.0 ± 21.2; P < .0001); group B (from 15.0 ± 0.0 to 37.5 ± 3.5; P < .001); and group C (from 12.5 ± 3.5 to 30.0 ± 7.1; P < .0001). A statistically significant increase in mean PD was recorded in group A (from 4.48 ± 0.5 to 5.25 ± 1.2; P < .001); in group B (from 4.71 ± 0.7 to 5.38 ± 1.31; P < .0001); and group C (from 6.00 ± 0.0 to 7.09 ± 1.1; P < .0001). Within the limitations of this study the results showed that the pandemic period resulted in an increase in probing depth for the patients in regular SPT, possibly due to increased tobacco consumption.
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