CRANIOMANDIBULAR STIFFNESS IN MYOGENOUS AND ARTHROGENOUS CMD PATIENTS, AND CONTROL SUBJECTS - A CLINICAL AND EXPERIMENTAL INVESTIGATION

The purpose of this study was to compare active maximum mouth opening, endfeel distance, and craniomandibular stiffness values of three cran iomandibular disorder (CMD) patient subgroups and a control group. The CMD patient subgroups consisted of myogenous pain patients and arthro genous pain patients with a 'closed lock' and arthrogenous pain patien ts without a 'closed lock'. Both myogenous pain patients and the 'clos ed lock' patients showed great differences on all parameters (P<0.05-P <0.001). However, the arthrogenous pain patients without a 'closed loc k' revealed no statistical differences with the control group on any o f the tested parameters.