Jaw pain and TMJ problems

The temporomandibular joint sits just in front of the ear and connects the jaw to the skull. It is used several thousand times a day for chewing, talking and swallowing, and it is one of the more complex joints in the body — it hinges and slides at the same time, with a small cartilage disc moving between the two bones.

Temporomandibular disorder, or TMD, covers pain and dysfunction in that joint and the muscles around it. It is common, and it is frequently missed because the symptoms present as something else.

What it feels like

• Aching in front of the ear, in the cheek, or across the temple
• Clicking, popping or grating when opening or closing
• Difficulty opening wide — eating an apple, or yawning
• The jaw locking, either open or closed
• Headache, particularly in the temples
• Earache with no ear infection, or a blocked-ear sensation
• Neck and shoulder tension, often on the same side
• Waking with a tight, tired jaw

That last one is a strong clue, because it points at night-time clenching or grinding.

Clicking on its own is usually fine

A jaw that clicks and does nothing else is extremely common and does not necessarily need treating. The click usually reflects the disc moving in and out of position as the joint opens.

What warrants attention is clicking accompanied by pain, restricted opening, or locking. Clicking alone, with full painless movement, is generally something to leave be rather than chase.

What causes it

Rarely a single thing:

Clenching and grinding. The most common contributor. Frequently nocturnal and unnoticed until someone points out the wear on your teeth or you wake with a sore jaw. Strongly associated with stress and with disturbed sleep.

Muscle overload. The muscles that close the jaw are powerful and, like any muscle held in sustained contraction, become painful and develop trigger points that refer into the temple, ear and teeth.

Joint and disc problems. Displacement of the disc, which produces the clicking and, when it will not reduce, the locking.

Arthritic change in the joint itself, more common with age.

Trauma — a blow to the jaw, or whiplash.

Neck involvement. The upper neck and the jaw share nerve supply at the level of the brainstem, which is why neck problems and jaw problems so often travel together and why treating one without the other frequently disappoints.

What treatment involves

Hands-on treatment of the jaw muscles and joint. Including, where appropriate and with consent, treatment inside the mouth to reach muscles not accessible from outside. This is discussed and explained first — it is not something to be sprung on someone.

Treating the neck. Given the shared nerve supply and the way the two present together, the upper cervical spine is assessed and treated as part of managing jaw pain rather than as a separate problem.

Dry needling to the masseter and temporalis where trigger points reproduce your pain.

Movement and load advice. Jaw exercises to restore controlled movement, plus the unglamorous behavioural part: noticing daytime clenching, resting the tongue on the palate with teeth apart, avoiding chewing gum, cutting food smaller during a flare.

Managing the drivers. Stress and sleep are not soft factors in TMD — they are frequently the main ones. Addressing them is part of the treatment, not an afterthought.

When you need a dentist

Manual therapy and dentistry both have a role here and neither covers the whole problem. See a dentist or a dental specialist if:

• You grind at night and need a splint or occlusal guard made — this is a dental appliance and needs to be fitted properly, not bought online
• There is visible tooth wear, cracking or sensitivity
• The bite has changed, or teeth no longer meet as they did
• The pain is toothache-like and localised to a tooth
• The jaw is locking and not resolving

An over-the-counter mouthguard is not a substitute for a fitted splint. A poorly fitting one can change how the jaw loads and make things worse.

When to seek medical review

• Jaw pain with chest pain, breathlessness or arm pain — jaw pain is a recognised presentation of cardiac events, particularly in women. Call 000.
• Jaw locked open and not reducing
• Significant facial swelling, fever, or pain after dental surgery, which may indicate infection
• New jaw pain in someone with a history of cancer, or with unexplained weight loss
• Numbness in the face

How long it takes

Muscle-driven TMD often improves noticeably within a few weeks of treatment combined with the load and habit changes. Disc and joint problems are slower and less predictable. Cases driven mainly by night-time grinding will keep recurring until the grinding is managed, which is usually a joint project with a dentist.