Analysis of the mandibular relationship of TMJ dysfunction patients using the Mandibular Kinesiograph.

Analyses of the relationship between centric relation and centric occlusion were performed using the Mandibular Kinesiograph to show the abnormality of mandibular positions of the TMJ dysfunction patients. The distance between centric relation and centric occlusion in antero-posterior, left, and linear direction showed significant differences between the normal subjects and the TMJ dysfunction patients. In the TMJ dysfunction patients, the number of the subjects who showed larger deviation between centric relation and centric occlusion increased remarkably when compared with normal subjects. It is suggested that the slide between centric relation and centric occlusion can be one of the causes of the TMJ dysfunction.