Table 1. House-Brackmann Grading .

Grading	Function	Gross	At Rest	Motion
Grade I	Normal	Normal	Normal	Normal
Grade II	Slight dysfunction	Slight noticeable weakness on close inspection; may have very slight synkinesis	Normal symmetry and tone	Forehead - moderate to good function; eye - complete closure with minimum effort; mouth - slight asymmetry.
Grade III	Moderate dysfunction	Obvious but not disfiguring difference between two sides; noticeable but not severe synkinesis, contracture, and/or hemifacial spasm	Normal symmetry and tone, Motion: forehead - slight to moderate movement; eye - complete closure with effort; mouth - slightly weak with maximum effort.
Grade IV	Moderate to severe dysfunction	Obvious weakness and/or disfiguring asymmetry	Normal symmetry and tone	Forehead - none; eye - incomplete closure; mouth - asymmetric with maximum effort.
Grade V	Severe dysfunction	Only rare perceptible motion	Asymmetry	Forehead - none; eye - incomplete closure; mouth – slight movement.
Grade VI	Total paresis, no movement	-	-	-