Table 1.
Changes in clinical variables (mean ± SD) over the 6-month experimental period (full-mouth data).
| Variables | Group | Baseline | 6 Months | Δ0–6 months |
|---|---|---|---|---|
| FMPS (%) | Stage B | 71.7 ± 15.9 | 14.6 ± 4.9 *** | 57.1 ± 17.7 |
| Stage C | 74.5 ± 25.6 | 13.3 ± 4.6 *** | 61.2 ± 24.8 | |
| Difference between groups | NS | NS | ||
| FMBS (%) | Stage B | 56.0 ± 20.7 | 13.6 ± 4.8 *** | 42.4 ± 19.6 |
| Stage C | 63.8 ± 23.0 | 16.1 ± 4.4 *** | 47.7 ± 22.7 | |
| Difference between groups | NS | NS | ||
| PD (mm) | Stage B | 4.6 ± 0.7 | 3.4 ± 0.4 *** | 1.2 ± 0.5 |
| Stage C | 4.9 ± 0.5 | 3.6 ± 0.6 *** | 1.3 ± 0.4 | |
| Difference between groups | NS | NS | ||
| CAL (mm) | Stage B | 5.3 ± 1.0 | 4.4 ± 0.8 *** | 0.9 ± 0.4 |
| Stage C | 5.6 ± 0.9 | 4.5 ± 0.7 *** | 1.2 ± 0.6 | |
| Difference between groups | NS | NS |
SD: standard deviation; FMPS: full-mouth plaque score; FMBS: full-mouth bleeding score; PD: probing depth; CAL: clinical attachment level; NS: difference between groups is not statistically significant (p > 0.05, Mann–Whitney U-test or unpaired t-test); *** p ≤ 0.001, p values represent changes from baseline (Wilcoxon test or paired t-test).