Interdental thickness discrimination in myofascial pain dysfunction subjects.

Interdental thickness discrimination (ITD) was evaluated on twenty-eight normal subjects and twenty subjects with myofascial pain dysfunction (MPD). This evaluation was performed before and after a submaximal isometric clenching task sustained to pain tolerance. The results of the study demonstrate a significant difference in ITD ability at several test points between the normal and MPD subjects. The experimental variable of sustained submaximal clenching did not significantly alter the ITD ability of either subject group.