Causes and Risk Factors for TMJ Disorders

Temporomandibular joint disorders may occur as a result of an injury to or inflammation of the joint. Damage to the TMJ can result from the following:

  • Arthritis
  • Excessive teeth grinding (e.g., during sleep; called bruxism)
  • Jaw wound or trauma
  • Muscle tension
  • Poor posture
  • Repetitive stress

In many cases, the underlying cause for TMJ symptoms is unknown.

Publication Review By: Stanley J. Swierzewski, III, M.D.

Published: 18 Aug 2009

Last Modified: 06 Oct 2015