Table 1. Clinical parameters for the sampled sites at baseline and after treatment.
| Test | Control | Padj value* | ||
|---|---|---|---|---|
| N | 18 | 19 | ||
| PPD (mm) | Baseline | 6.1 ± 1.2 | 6.2 ± 1.1 | 0.793 |
| 3 months | 3.8 ± 0.8§ | 4.4 ± 1.2§ | 0.040 | |
| 6 months | 3.7 ± 0.6§ | 4.4 ± 1.0§ | 0.007 | |
| 12 months | 3.6 ± 1.1§ | 4.4 ± 1.2§ | 0.035 | |
| CAL (mm) | Baseline | 6.7 ± 2.0 | 6.5 ± 1.3 | 0.729 |
| 3 months | 5.2 ± 2.0§ | 5.4 ± 1.4§ | 0.084 | |
| 6 months | 5.0 ± 2.0§ | 5.4 ± 1.3§ | 0.155 | |
| 12 months | 4.9 ± 1.9§ | 5.3 ± 1.5§ | 0.331 | |
| BOP(%) | Baseline | 95.8 ± 17.7 | 96.1 ± 9.4 | 0.963 |
| 3 months | 52.8 ± 39.2§ | 55.3 ± 35.9§ | 0.806 | |
| 6 months | 58.3 ± 24.3§ | 55.3 ± 35.9§ | 0.756 | |
| 12 months | 45.8 ± 36.6§ | 56.6 ± 33.2§ | 0.362 | |
| Plaque | Baseline | 81.9 ± 25.4 | 67.1 ± 34.4 | 0.144 |
| 3 months | 45.8 ± 36.6§ | 31.6 ± 31.0§ | 0.510 | |
| 6 months | 31.9 ± .7§ | 40.8 ± 31.4§ | 0.124 | |
| 12 months | 38.9 ± 34.5§ | 35.5 ± 33.7§ | 0.704 |
PPD, probing pocket depth; CAL, clinical attachment level; BOP, bleeding on probing.
*Difference between Test and Control (ANCOVA adjusted for the corresponding variable at baseline). §P < 0.05 in comparison with baseline (repeated-measures ANOVA). Values are means ± standard deviations.