| Baseline | 6-months | ||||
---|---|---|---|---|---|---|
Test | Control | p value | Test | Control | p value | |
Bleeding score, % | ||||||
 All surfaces | 30.4 (27.4—33.5) | 32.9 (29.9—35.8) | 0.266 | 12.5 (11.0—14.1) | 13.1 (11.4—14.9) | 0.636 |
 Proximal | 46.6 (42.6—50.5) | 48.9 (45.7—52.1) | 0.367 | 20.2 (17.8—22.6) | 19.6 (17.4—21.9) | 0.726 |
Plaque score†, % | ||||||
 All surfaces | 34.0 (30.6—37.5) | 44.6 (41.2—47.9) |  < 0.001 | 14.6 (12.9—16.3) | 20.8 (18.2—23.3) |  < 0.001 |
 Proximal | 50.1 (45.6—54.7) | 62.6 (58.6—66.6) |  < 0.001 | 21.5 (18.7—24.3) | 28.8 (25.3—32.2) | 0.001 |