TMJ syndrome is initially diagnosed by listening to and feeling the joint while opening and closing the mouth. The range of motion is recorded. Dental X-rays are taken to evaluate the jaws and teeth if any problem persists during inspection and palpation. Computer tomography or CT scan, will help create a detailed picture of the joint. MRI or magnetic resonance imaging, helps diagnose problems in the articular disc or the soft tissue surrounding the temporomandibular joint.