| Anatomical position | Score |
| Angulation (inclination of longitudinal axis): |
|
| Mesioangular | 1 |
| Horizontal/transverse | 2 |
| Impacted vertical | 3 |
| Distoangular | 4 |
| Depth of impaction (with respect to occlusal plane): |
|
| Occlusal plane of impacted tooth at same level as occlusal plane of second molar | 1 |
| Occlusal plane of impacted tooth between occlusal plane and cervical line of second molar | 2 |
| Impacted tooth below cervical line of second molar | 3 |
| Available space (with respect to ascending mandibular ramus): |
|
| Sufficient space between ramus and distal part of second molar to accommodate mesiodistal diameter of third molar | 1 |
| Space between second molar and ramus of mandible is less than mesiodistal diameter of third molar | 2 |
| All or most of third molar is in ramus of mandible | 3 |