Parameters | Classification | ADDwR (N) | ADDwoR (N) |
---|---|---|---|
Gender | |||
 | Male | 2 | 3 |
 | Female | 15 | 14 |
Age (years) | |||
 | ≤ 20 | 2 | 6 |
 | 20 ~ 40 | 12 | 11 |
 | ≥ 40 | 3 | 0 |
Duration of disease (months) | |||
 | < 4 | 4 | 4 |
 | ≥ 4 | 13 | 13 |
Occlusal interference | |||
 | No obvious malocclusion | 1 | 1 |
 | Edge-to-edge bite | 2 | 2 |
 | Deep overbite | 2 | 2 |
 | Deep overjet | 1 | 2 |
 | Crossbite | 2 | 1 |
 | Open bite | 2 | 3 |
 | Locked bite | 4 | 1 |
 | Third-molar elongation | 3 | 5 |
Total number | 34 | 17 | 17 |