Table 3. House-Brackmann Scale

Grade	Description	Characteristics
I	Normal	Normal facial function in all areas
II	Slight Dysfunction	Gross: slight weakness noticeable on close inspection; may have very slight synkinesisAt rest: normal symmetry and toneMotion:- Forehead: moderate to good function- Eye: complete closure with minimum effort- Mouth: slight asymmetry
III	Moderate Dysfunction	Gross: obvious but not disfiguring difference between two sides; noticeable but not severe synkinesis, contracture, and/or hemi-facial spasm.At rest: normal symmetry and toneMotion:- Forehead: slight to moderate movement- Eye: complete closure with effort- Mouth: slightly weak with maximum effort
IV	Moderate Severe Dysfunction	Gross: obvious weakness and/or disfiguring asymmetryAt rest: normal symmetry and toneMotion:- Forehead: none- Eye: incomplete closure- Mouth: asymmetric with maximum effort
V	Severe Dysfunction	Gross: only barely perceptible motionAt rest: asymmetryMotion:- Forehead: none- Eye: incomplete closure- Mouth: slight movement
VI	Total Paralysis	No movement