Temporomandibular joint (TMJ) disorder: jaw pain, clicking and self-management

The temporomandibular joint (TMJ) is the hinge on each side of the face connecting the lower jaw to the skull. Leeds Dental Institute describes temporomandibular disorders as a group of conditions that affect the jaw joints or the muscles around them, noting that the older term TMJ pain dysfunction syndrome, or simply TMJ, is still sometimes used.

The same leaflet explains the main types. Muscular TMD, with pain in the chewing muscles, is the most common. Others involve the bones of the joint or the small disc of cartilage inside it, and some people have a mixture of muscle and joint problems. Because the label covers several mechanisms, two people with TMD can have quite different symptoms.

The NHS lists pain around the jaw, ear and temple, clicking, popping or grinding when the jaw moves, a headache around the temples, difficulty opening the mouth fully and the jaw locking. It adds that pain may be worse when chewing or when stressed, and that TMD can disturb sleep.

The Leeds leaflet describes muscular TMD as pain or tightness in the jaw, trouble chewing or opening the mouth, pain in the teeth, face or around the eyes, earache or headaches, and pain in the neck, shoulders or back. It notes that symptoms can come and go, and tend to feel worse when you are stressed, sleeping badly, run down or unwell.

The NHS lists teeth grinding, wear and tear of the joint, a blow to the head or face, stress and an uneven bite. Leeds takes a broader view: there is usually no single cause, and many things add to the problem. Injuries to the jaw joint or long dental appointments can sometimes cause short-term pain, which usually settles by itself.

Leeds also says that clenching or grinding teeth (bruxism) does not cause TMD but can make it worse, and that pain lasting longer than three months is chronic pain, which can start without injury and involves body, mind and lifestyle. Some people with TMD also have conditions such as fibromyalgia, chronic fatigue syndrome, migraine, irritable bowel syndrome, anxiety, depression or PTSD. Recognising these links explains why treatment often includes stress, sleep and posture, not only the jaw.

Both the NHS and the Leeds leaflet put self-care first. The NHS suggests soft foods such as pasta, omelettes and soup, paracetamol or ibuprofen, an ice or heat pack wrapped in a tea towel, gentle massage of the painful muscles and finding ways to relax. It says to avoid chewing gum or pen tops, biting food with the front teeth, yawning too wide, nail biting and clenching: apart from when eating, your teeth should be apart.

Leeds gives more structure, and stresses doing these things daily, even when pain is absent, to help stop it returning:

• Heat (a heat pack or warm damp cloth) for 10 to 15 minutes twice a day, or cold for 5 to 10 minutes; try heat for a week then cold for a week to see which suits you.

• Gentle massage of the sore muscles two to three times a day for a minute or two.

• Soft foods and avoiding hard or chewy foods for about two weeks when pain flares, then returning gradually.

• Good posture, with the neck straight and shoulders relaxed, and keeping the jaw relaxed with teeth slightly apart.

• Simple jaw exercises that a clinician shows you; the right ones depend on whether pain, clicking or restricted opening is the problem.

The NHS says to ask for an urgent GP appointment or get help from 111 if you are unable to eat or drink, or have frequent severe headaches, pain or tenderness at the side of the head or scalp, or vision problems such as double vision or loss of vision. It also lists difficulty opening the mouth fully or jaw locking in the same list and says these can be signs of a serious problem needing urgent treatment. Do not assume new headaches and visual symptoms are simply jaw related.

For ordinary symptoms that do not settle, the NHS says a GP may suggest stronger painkillers, relaxation techniques and ways to improve sleep, and may suggest a dentist if teeth grinding might be an issue, a psychologist if stress and anxiety are worsening pain, or a physiotherapist for jaw exercises and massage.

The NHS says that if these treatments do not help, you may be referred to a specialist in joint problems to discuss other options such as painkilling injections or surgery. The NHS describes this as a specialist in joint problems.

Leeds emphasises that not every treatment suits everyone, some people respond to one thing and others need several together, and the most important part of treatment is what you do at home each day. That is a useful frame for any private provider too: ask what the plan is beyond a splint or an injection, and how progress will be measured.

NHS routes begin with a GP or dentist. Access to NHS dentists varies by area, so some people reach a physiotherapist or hospital service through the GP instead. Specialist TMD services exist in some dental hospitals but are not available everywhere, and waits differ.

Private dentists, physiotherapists and oral surgeons offer faster appointments, bite splints and jaw physiotherapy. Because TMD often improves and has links to stress and sleep, be cautious of costly irreversible treatments such as changing the bite or surgery being proposed early. Ask for the diagnosis in plain words, which type of TMD it is, and what simpler options have been tried.