Jaw Joint (TMJ) Disorders

The jaw joint (the temporomandibular joint, or TMJ) sits just in front of the ear, where the lower jaw meets the skull. It works constantly as you talk, chew and yawn. Inside the joint, a small disc acts as a cushion between the two bone surfaces. What we call jaw joint disorders covers pain and movement problems that arise from the joint itself, from this disc or from the muscles that move the jaw. The most common of them is actually not joint pain at all, but pain coming from the muscles.

Most complaints do not need surgery and improve over time with simple, reversible measures. On this page we explain what each symptom means, when keeping an eye on it is enough and when further investigation is needed.

Which symptoms come from the jaw joint?

• Pain in front of the ear, in the temple or at the angle of the jaw; tiredness that builds up as you chew
• A click as you open and close your mouth, sometimes a grating sound like sand rubbing
• Not being able to open your mouth fully, or the jaw veering to one side as it opens
• The jaw catching for a moment, a feeling of locking
• A feeling of fullness or pain in the ear even though an ear examination is normal

These symptoms can come from other problems too: an inflamed back tooth, sinusitis or an ear infection can mimic jaw joint pain. Ruling these out is the first job at the examination. Jaw joint complaints are more common in women and in young adults, but they can appear at any age.

Does a clicking jaw need treatment?

Usually not. Many people have a click in the jaw that does not hurt, and it can stay unchanged for years. It generally means that the disc slips back into place as the mouth opens. If there is no pain, no locking and no reduction in how wide you can open, we do not recommend treatment just for the sound; we explain which changes should bring you back to us and we keep it under review.

If the click has gone and been replaced by an inability to open fully, the situation is different: the disc may no longer be slipping back into place. It is important to catch this early.

Why conservative measures first?

Complaints in the jaw joint and its muscles come and go; they flare up in stressful periods and can then settle on their own. That is why, at the first stage, we do nothing that cannot be reversed. Conservative treatment consists of:

1. Resting the jaw. A soft diet for a few weeks, a break from hard and chewy foods, not opening the mouth too wide, and supporting the jaw with your hand when you yawn.
2. Dropping habits that strain it. Chewing gum, biting nails and pens, clenching during the day, holding the phone between shoulder and chin.
3. Heat and exercises. A warm compress on the muscles, plus the controlled opening, closing and stretching movements we show you.
4. A night guard. If night-time clenching or grinding is part of the picture, a hard acrylic occlusal splint can reduce the load on the muscles and the joint.
5. Medication. Short-term painkillers or muscle relaxants when needed, on a clinician's advice and for a limited time.

In most patients the symptoms ease noticeably within a few weeks to a few months. For some, physiotherapy makes the process easier. At follow-up visits we measure your mouth opening in millimetres and score the pain together with you, so the next step is decided on a measurable change rather than a vague sense that things "seem a bit better". If night-time clenching is a significant part of the picture, the advice on our bruxism treatment page applies here too.

Will drilling down or crowning the teeth fix it?

For a jaw joint complaint, drilling the teeth down to "correct" the bite, crowning teeth en masse, or starting orthodontics for this purpose alone is not a first choice according to current evidence. These procedures cannot be undone, and there is nothing to show that they make the complaint go away. If the bite needs treatment for other reasons anyway, for example if orthodontic treatment is already being planned, that is a separate decision; but joint pain on its own is not a reason to cut into healthy teeth.

When is imaging needed?

We do not take X-rays for every jaw pain. After the examination, we plan imaging if any of the following applies:

• Pain or difficulty opening that has not improved within a few weeks despite conservative treatment
• A grating sound in the joint and suspected changes in the bone
• Symptoms that started after a blow, a fall or an accident
• A bite that has changed over a short time, with the teeth no longer meeting as they used to

A panoramic X-ray gives a general overview. If the bone needs to be seen in detail, a 3D CBCT scan is requested; if the position of the disc needs to be seen, an MRI. Because the disc is soft tissue, it shows up on MRI, not on X-rays. We explain what each type of image shows on the oral diagnosis and dental imaging page.

When will you be referred to another specialist?

Locking that has not improved for weeks, progressive joint damage or problems that do not respond to conservative treatment need assessment by an oral and maxillofacial surgeon. Minor procedures such as washing out the joint (arthrocentesis) come up at this stage; open surgery is rarely needed. If several joints are painful and swollen, with stiffness in the morning, we ask for a rheumatology opinion; if there is numbness in the face or a burning pain that is hard to describe, a neurology opinion. When we refer you, whether to a colleague in İzmir or to a specialist where you live, we give you our findings and your images in writing, so you do not have to repeat the same tests from scratch.

When not to wait

If your mouth is stuck open and will not close (a dislocated jaw), if your bite has changed after a blow, or if you have swelling in the face, a fever, difficulty swallowing or sudden numbness, do not wait: see a doctor or go to an emergency department the same day, the nearest one if you are not in İzmir. Do not try to push a dislocated jaw back into place yourself.