title: The facial nerve function coefficient: analysis of 100 normal subjects.
abstract: The Facial Nerve Function Index (FNFI) is a measure of asymmetrical facial movement and is a quick and easy method of monitoring the improvement of function in patients with facial nerve palsy. However, purely as a consequence of the way the index is formulated, and not primarily because of any tendency to biological asymmetry favoring one particular direction in the population, the FNFI has a highly skewed distribution. To remove the inherent asymmetry of the index, a modified index, the Facial Nerve Function Coefficient (FNFC), for which a symmetrical distribution is obtained, is proposed. A reference range for this index was derived.
authors.affiliation: Dental School, University Hospital of Wales, Heath Park, Cardiff, UK.
authors.forename: N S
authors.initials: NS
authors.lastname: Peckitt
authors.forename: R V
authors.initials: RV
authors.lastname: Walker
authors.forename: G R
authors.initials: GR
authors.lastname: Barker
mesh_terms: D000293:Adolescent; D000328:Adult; D015982:Bias; D005152:Facial Muscles / Q000502:physiology; D005154:Facial Nerve / Q000502:physiology*; D005158:Facial Paralysis / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012016:Reference Values