Jaw Disorders Common in Fibromyalgia Patients
Fibromyalgia is a chronic pain condition with many varied symptoms. Temporomandibular joint disorders are one potential symptom. A recent study sought to add to the understanding of TMJ disorders in patients with fibromyalgia. The study compared TMD features in 40 women with fibromyalgia with TMD in 40 healthy participants.
Facial pain was reported by 85% of the patients with fibromyalgia and 77.5% were diagnosed with myofascial TMD. Patients with fibromyalgia reported significantly higher levels of muscle pain while moving the jaw, bruxism/clenching during the day, and limited mouth opening. No difference was found in bruxism/clenching while sleeping or in joint noises.
Classic signs of TMD, such as clenching at night and joint noise, do not appear to be associated with fibromyalgia. However, daytime clenching, muscle pain during jaw movements, and limited mouth openings do appear to be features of fibromyalgia. This study revealed that the specific muscle involvement of TMD is also present in fibromyalgia.
Studies show that patients with whiplash are also more likely to suffer from temporomandibular joint disorders.
Pimentel MJ, Gui MS, Martins de Aquino LM, Rizzatti-Barbosa CM. Features of temporomandibular disorders in fibromyalgia syndrome. Cranio 2013; 31(1):40-5.