Abstract
The hardness and biting off of six kinds of foods were evaluated using sensory evaluation and examined the relationship of them to the masticatory force patterns in the masticatory movements.
The maximum masticatory force (F), the maximum derivative of the masticatory force with respect to time (ID) and the loading time on tooth (t1) were derived from the first masticatory pattern of the masticatory movements. The number of masticatory movements (N) and the duration time (T) of mastication up to complete swallowing were derived from whole masticatory movement.
Sensory evaluation of hardness were correlated with ID, t1, T and N. Sensory biting off were correlated with F, t1, T and N.
This implied that F and ID were characteristic of sensory hardness and biting off of foods, restictively, and t1, T and N were common characteristics to both sensory hardness and biting off.
