| Classification | Value |
| Spatial relationship | |
| Mesio-angular | 1 |
| Horizontal/transvers | 2 |
| Vertical | 3 |
| Disto-angular | 4 |
| Depth | |
| Level A: high occlusal level | 1 |
| Level B: medium occlusal level | 2 |
| Level C: deep occlusal level | 3 |
| Ramus relationship/space available | |
| Class 1: sufficient space | 1 |
| Class 2: reduced space | 2 |
| Class 3: no space | 3 |
| Difficulty index | |
| Very difficult | 7-10 |
| Moderately difficult | 5-6 |
| Slightly difficult | 3-4 |
