Abstract
The purpose of this study was to measure the stiffness, defined as the compressive force to a certain displacement, of each pair of masseter muscle during the light, the moderate, and the maximum occluding at centric.
Eight males and ten females (aged from 19 to 29) volunteered as normal subjects.
The result was obtained that the higher the biting strength was, the more the muscle stiffness increased in each subject.
