Temporomandibular joint dysfunction / disorder (TJD) relates to inflammation of the temporomandibular joint, the joint next to your ears which connects the jaw bone (mandible) to the skull. Temporomandibular joint dysfunction is known to be more prevalent among chronic fatigue syndrome patients (TJD is a co-morbid condition with CFS). Temporomandibular joint dysfunction can have many symptoms, from tension headaches to tinnitus, and from jaw pain to shoulder/back pain. The TJD symptom I am interested in is misaligned bite (malocclusion), which is where the upper and lower teeth no longer align properly together when closing the mouth and biting. I started to experience this misaligned bite / malocclusion symptom over the last 5 years, since getting CFS. I appear to have the beginnings of very mild class 3 malocclusion (prognathism), which occurs when the lower jaw protrudes forward a little. This mild prognathism means when I close my mouth and bite, my lower incisor teeth now grind into the backs of my upper incisor teeth, wearing down the enamel on the backs of my upper incisors down. I assume this is caused either by my lower jaw bone itself growing slightly larger, or by problems in my temporomandibular joint such that it pushes my jaw bone forward. Has anyone else experienced this change in tooth alignment since acquiring chronic fatigue syndrome?