Jl. Hochstedler et al., TEMPOROMANDIBULAR-JOINT RANGE OF MOTION - A RATIO OF INTERINCISAL OPENING TO EXCURSIVE MOVEMENT IN A HEALTHY POPULATION, Cranio, 14(4), 1996, pp. 296-300
Range of motion is used in the examination and diagnosis of many joint
s. A simple method to measure and record temporomandibular joint range
of motion is presented. Correlation of mandibular movement to excursi
ve or lateral movements for a healthy population is described. The max
imum incisal opening and lateral movements of 75 subjects, aged 20-50
years, were recorded. The average of maximum opening to lateral moveme
nts was found to be 4.4 to 1. A significant correlation or ratio of ma
ndibular movement for use in diagnoses and treatment planning is discu
ssed.