| A. Common Causes | Ispain spontaneous? | Is pain continuous? | Is pain well located? | Is tooth TTP? | Soft tissue tenderness? | Is tooth vital? | Any radiographic changes? | Other relavent signs? |
| 1 Tooth Origin | . | . | . | . | . | . | . | . |
| Reversible acute pulpitis | . | To stimulus | . | . | . | . | . | . |
| Irreverrsible acute pulpitis | . | . | . | . | . | . | . | . |
| Dentine hypersensitivity | . | To stimulus | . | . | . | . | . | Exposed dentine |
| Chronic pulpitis | . | To stimulus | . | . | . | . | . | . |
| Acute apical periodontitis | . | . | . | Slightly | . | . | ? Periapical widening | . |
| Chronic apical periodontitis | . | To stimulus | . | Slightly | . | . | ?Periapical widening | . |
| Acute apical abscess | . | . | . | . | . | . | Periapical radiolucency | Lymphadenopathy |
| 2 Gingival supporting tissues | . | . | . | . | . | . | . | . |
| Lateral periodontal abscess | . | . | . | . | . | . | Periodontal bone loss | Periodontal pocketing |
| Acute ulcerative gingivitis | . | . | . | . | . | . | ?Boney cratering | Detruction interdental papillae |
| Pericoronitis | . | . | . | . | . | . | ? Follical around tooth | Partiall erupted tooth |