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Myofascial pain disorder



NHS Choices Syndication

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Jaw problems

Introduction

Temporomandibular disorder (TMD) is a problem affecting the ‘chewing’ muscles and the joints between the lower jaw and the base of the skull.

Doctors sometimes refer to the condition as “myofascial pain disorder”.

It’s been estimated that up to 30% of adults will experience TMD at some point in their lives.

The condition itself isn’t usually serious, and the symptoms it can cause  including pain, jaw joint clicking or popping, and difficulties eating  usually only last a few months before getting better.

However, these symptoms can significantly lower quality of life, and specialist treatment might be required if they’re severe.

What are the symptoms?

TMD can cause:

  • clicking, popping or grating noises as you chew or move your mouth
  • muscle pain around the jaw
  • pain in front of the ear that may spread to the cheek, ear and temple
  • difficulty opening the mouth  the jaw may feel tight, as if it is stuck, making eating difficult
  • headache or migraine
  • earache or a “buzzing” or blocked sensation in the ear
  • pain in other areas of the body  such as neckache or backache

These symptoms may lead to related symptoms, such as disturbed sleep.

What are the causes?

Possible causes of TMD include:

  • clenching your jaw or grinding your teeth during sleep (bruxism) – which overworks the jaw muscles and puts pressure on the joint (often caused by stress)
  • wear and tear of the inside of the jaw joint – usually caused by osteoarthritis
  • injury to the jaw joint – for example, after a blow to the face or surgery
  • stress  some people may inherit increased sensitivity to pain or stress
  • uneven bite  for example, when new fillings, dental crowns or dentures are fitted
  • specific diseases  TMD may be associated with specific diseases such as rheumatoid arthritis, gout or fibromyalgia

However, some people may develop TMD without an obvious cause being found.

How is TMD treated?

If you have TMD, see your GP or dentist first for diagnosis and to discuss treatment options.

Generally, non-surgical treatments such as lifestyle changes and self-help physiotherapy-type treatments are tried first.

A small number of people with severe TMD may be referred to an oral and maxillofacial surgeon to discuss further treatment options.

Lifestyle changes

There are a number of self-help measures that can help improve TMD, including:

  • resting the joint by eating soft food and avoiding chewing gum
  • holding a warm or cold flannel to the jaw for 10-20 minutes, several times a day
  • doing a few gentle jaw-stretching exercises  your healthcare professional can recommend appropriate exercises
  • avoiding opening the joint too wide until the pain settles
  • avoiding clenching the teeth for long periods of time
  • massaging the muscles around the joint
  • relaxation techniques to relieve stress
  • not resting your chin on your hand

Mouth guards

Mouth guards (plastic devices that fit over your teeth) may be helpful if you grind your teeth.

These cover the teeth at night to reduce jaw clenching and teeth grinding, and can be made to measure by your dentist.

Read more about treatments for teeth grinding.

Medication

Painkillers such as paracetamol, ibuprofen or codeine can help relieve the pain associated with TMD.

If these aren’t enough to control the pain, your doctor may prescribe stronger medication such as a muscle relaxant or antidepressant.

Steroid injections

If TMD is caused by a disease such as arthritis, a steroid injection into the jaw joint can help reduce pain and swelling in a joint or the surrounding soft tissue.

Most people report feeling less pain within the first 24 hours to one week.

You may find your pain improves for a period of a few weeks to several months and, in some cases, the injection resolves the pain completely.

Read more about corticosteroids (steroids).

Surgery

If the above measures don’t help and the source of your symptoms is the temporomandibular joint  rather than the chewing muscles  your specialist may suggest a surgical treatment such as arthrocentesis (joint wash-out).

Open joint surgery may be considered in the rare cases where there is an abnormality within the joint.

Total joint replacement may be recommended for an extremely small number of people with severe, long-lasting symptoms and impaired jaw function. The National Institute for Health and Care Excellence (NICE) has produced guidelines on this procedure.

Read the NICE 2009 guidelines on artificial total temporomandibular joint replacement.

All joint surgery can have significant side effects and you should discuss these with your surgeon.

Outlook

Most cases of TMD improve over time and do not get worse, and most people will not need surgery.

In the meantime, symptoms can often be improved with the treatments mentioned above.

Published Date
2014-09-08 15:30:38Z
Last Review Date
2014-08-20 00:00:00Z
Next Review Date
2016-08-20 00:00:00Z
Classification
Aches, pains and soreness,Arthritis,Arthroscopy,Ear, nose and throat specialists,Head and neck,Jaw,Joint pain,Joint replacements,Joint surgery,Joints,Lifestyle changes,Mouth,National Institute for Health and Clinical Excellence,Skull

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