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MusculoskeletalICD-10: M26.60Affects approximately 10 million Americans

Temporomandibular Joint Disorder

Also known as: TMJ, TMD, TMJ dysfunction

Temporomandibular joint disorder encompasses a group of conditions affecting the jaw joint and the muscles controlling jaw movement. Symptoms include jaw pain, difficulty chewing, and clicking or locking of the joint. TMD is often multifactorial and can be managed with conservative treatments, though severe cases may require more advanced interventions.

Symptoms

Pain or tenderness in the jaw
Aching pain around the ear
Difficulty or discomfort while chewing
Clicking, popping, or grating sounds when opening or closing the mouth
Locking of the jaw joint making it difficult to open or close the mouth
Facial pain
Headaches
Neck and shoulder pain

Causes

  • Disc erosion or misalignment within the joint
  • Arthritis affecting the temporomandibular joint
  • Jaw injury or trauma
  • Chronic teeth grinding or clenching (bruxism)
  • Connective tissue diseases

Risk Factors

  • Chronic teeth grinding or clenching
  • Certain types of arthritis such as rheumatoid or osteoarthritis
  • Jaw injury
  • Female sex, particularly during reproductive years
  • High stress levels

Diagnosis

  • Physical examination of jaw movement, range of motion, and pain
  • Dental X-rays to assess teeth and jaw alignment
  • MRI to evaluate the disc and soft tissues of the joint
  • CT scan for detailed bone structure assessment

Treatment

  • Over-the-counter pain relievers and anti-inflammatory medications
  • Oral splints or mouth guards to reduce clenching
  • Physical therapy including jaw exercises and stretches
  • Stress management and relaxation techniques
  • Corticosteroid injections into the joint
  • Arthroscopy or open joint surgery for severe cases

Prevention

  • Avoiding excessive jaw clenching or gum chewing
  • Stress reduction techniques
  • Wearing a night guard if you grind your teeth
  • Maintaining good posture to reduce jaw strain

When to See a Doctor

  • Persistent jaw pain or tenderness
  • Inability to fully open or close the mouth
  • Clicking accompanied by pain or limited movement
  • Jaw pain that interferes with eating or speaking

Frequently Asked Questions

Related Conditions

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Medical Disclaimer: This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.

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