| Variables | n˚1 | n˚2 | n˚3 | n˚4 | |
| Characteristics of the history | Pain | + | + | + | + |
| Swelling | + | − | + | + | |
| Fistulization | + | + | + | + | |
| Self medication | + | + | + | + | |
| Tradipractic | + | + | + | + | |
| Later consultation | + | + | + | + | |
| Characteristics on physical examination | Pain | − | + | − | + |
| Swelling | + | + | + | + | |
| Lymphadenopathy | + | + | + | + | |
| Trismus | − | − | − | − | |
| Poor oral hygiene + halitosis | + | + | + | + | |
| Fistula | − | − | + | − | |
| Mobility of the receiver | + | + | + | + | |
| Radiographic examination | Rétro-alvéolar | − | − | − | − |
| Orthopantomography | + | + | + | + | |
| Computed tomography | − | − | − | − | |
| Biologic examination | CBC + hemostasis assessment | Abnormal | Abnormal | Abnormal | Abnormal |
| Treatment | Sequestrectomy | + | + | + | + |
| Antibiotic | + | + | + | + | |
| Antalgic | − | + | + | + | |
| Antiseptic | + | + | + | + | |
| Antiseptic | + | + | + | + | |