Primary outcomes | Baseline | V2 | V3 | P value |
Knowledge score median (IQR) range | 6 (5–7) 2–8 | 7 (5–8) 2–8 | 8 (6–8) 3–8 | <0.001 |
Use PFT ≥1 x day n (%) | 8 (12.9) | 47 (79.7) | 45 (80.4) | <0.001 |
Clean ID ≥3 x week n (%) | 10 (16.2) | 30 (75.0) | 21 (34.0) | =0.013 |
OSTRC score median (IQR) range | 0 (0–8) 0–82 | 0 (0) 0–69 | 0 (0) 0–82 | <0.001 |
Bleeding score median (IQR) range | 10 (5–15) 1–36 | 7.5 (4–14) 0–51 | 10.5 (6.63–16) 0–35 | =0.952 |
ID, interdentally; OSTRC, Oslo Sports Trauma Research Centre; PFT, prescription fluoride toothpaste.