Table 3.

House-Brackmann facial nerve grading system.

Stage	Description
I	No paresis: normal function
II	Mild paresis: no deformity at rest
III	Moderate paresis: obvious difference from the other side, no deformity at rest, synkinesis, total closure of eyelids at maximum effort
IV	Moderately severe paresis: disfiguring asymmetry, synkinesis, eye closure incomplete at maximum effort
V	Severe paresis: asymmetry at rest (ptosis of the labial commissure, effacement of the nasolabial fold), some visible residual movements
VI	Complete paralysis: atony at rest, no active movement