Tooth-related factor character
| Group | N | (%) | |
|---|---|---|---|
| Bone loss | < 30% | 58 | 46.8 |
| > 30% | 66 | 53.5 | |
| Furcation involvement status | Class 1 | 63 | 50.8 |
| Class 2 | 38 | 30.6 | |
| Class 3 | 23 | 18.6 | |
| Tooth vitality | Vital tooth | 119 | 96 |
| Non-vital tooth | 5 | 4 | |
| Prosthesis state | Non-abutement tooth | 116 | 93.6 |
| Abutement tooth | 8 | 6.4 | |
| Maximum periodontal pocket depth (mm) | < 7 | 83 | 66 |
| ≥ 7 | 41 | 33 | |
| Number of tooth root | 1 | 11 | 9.2 |
| 2 | 58 | 46.7 | |
| 3 | 55 | 44.1 |
