House–Brackmann score
Columns: Grade | Description | Measurement | Function % | Estimated function %
I | Normal | 8/8 | 100 | 100 | II | Slight | 7/8 | 76–99 | 80 | III | Moderate | 5/8–6/8 | 51–75 | 60 | IV | Moderately severe | 3/8–4/8 | 26–50 | 40 | V | Severe | 1/8–2/8 | 1–25 | 20 | VI | Total | 0/8 | 0 | 0