What Causes TMJ?John Miller
What Causes TMJ?TMJ dysfunction is considered a multifaceted musculoskeletal disorder. The most common causes of TMD include:
- Masticatory muscle dysfunction,
- Derangement/displacement of TMJ articular disc
- Bruxism: nocturnal grinding of teeth leads to increased pressure in TMJ and asymmetrical movement.
- Occlusal Problems: Poor bite, Asymmetrical or Retrognathic (underbite, overbite).
- Mandibular malalignment is secondary to an occlusal appliance or orthodontic treatment.
- Removal of wisdom teeth,
- Prolonged mouth opening, e.g. dental procedure,
- Poor cervical posture,
- Myofascial pain,
- Neuropsychological factors,
- Stress and
- Whiplash and other less common causes include trauma (e.g., blow to the chin), infection, polyarthritic conditions, tumours, and anatomical abnormalities.
TMJ Dysfunction ClassificationsThe common presentations of TMJ dysfunction classify into three clinical diagnostic groups:
- Jaw muscle disorder characterised by painful movement.
- Articular disc displacement.
- Arthralgia or arthritis.