Journal of Dental Research, Vol 64, 129-133, Copyright © 1985 by International & American Associations for Dental Research Online Journals
Malocclusion, masticatory muscle, and temporomandibular joint tenderness
F. M. Bush
The Angle classification of occlusion, as well as occlusal contacts
determined at retrusion, mediotrusion, laterotrusion, and protrusion were
recorded from 298 dental students. Various masticatory muscles and the TM
joints were palpated simultaneously for tenderness. No significant
relationships were observed between (1) tenderness and Angle class or (2)
tenderness and any occlusal contact. In relation to a slide between
retruded contact position and intercuspal position: measurements for (a)
vertical and (b) horizontal displacements, but not (c) lateral deflection,
were greater in Class I students without tenderness than in Class I
students with tenderness.