Your jaw joint works more than almost any other joint in your body. You use it to eat, talk, yawn, and breathe. When it starts hurting, clicking, or locking, the effect on daily life is disproportionate. Something as basic as eating breakfast becomes difficult.
TMJ disorder (temporomandibular disorder, or TMD) is an umbrella term for conditions affecting this joint and the muscles that control it. Estimates suggest it affects up to 10 to 15 per cent of the adult population at any given time. It is frequently misunderstood, and often treated more than patients expect.
Where the pain comes from
The temporomandibular joint sits just in front of each ear. It is a hinge joint with a sliding component, which makes it one of the most complex joints in the body. A small disc of cartilage sits between the bones, allowing smooth movement.
Pain in this area can originate from several sources:
The joint itself. Inflammation, disc displacement, or degenerative changes in the joint surfaces can cause pain during movement. This is often felt as a deep ache in front of the ear that worsens with chewing.
The muscles. The masseter and temporalis muscles, which power jaw movement, can become overworked, strained, or develop trigger points. Muscle-origin TMD is the most common type and is strongly associated with teeth grinding and clenching.
The bite. If your teeth do not meet evenly, the joint compensates. Over time, this asymmetric loading can irritate the joint or overwork one set of muscles.
Stress. Stress drives clenching, both awake and asleep. Many patients notice their jaw pain correlates with periods of high stress, poor sleep, or anxiety. Brisbane's post-pandemic work patterns, with more screen time and less physical movement, have contributed to an increase in presentations.
Posture. Forward head posture, common in people who work at desks or use phones for extended periods, changes the resting position of the jaw and can strain the muscles and joints.
Trauma. A blow to the jaw or face, whiplash injury, or prolonged mouth opening during dental procedures can trigger TMD symptoms.
Symptoms that point to TMD
TMD does not always present as jaw pain. The symptoms can be diffuse and are sometimes mistaken for other conditions.
Common presentations:
- Pain or tenderness in the jaw, particularly when chewing or opening wide
- Clicking, popping, or grating sounds when opening or closing the mouth
- The jaw locking in an open or closed position
- Difficulty opening the mouth fully
- Pain around the ear that is not related to an ear infection
- Headaches, particularly on waking (often temple or forehead headaches)
- Neck and shoulder tension on one or both sides
- Tooth pain that does not correspond to any visible dental problem
If you are experiencing headaches that your GP cannot explain, or ear pain with no infection, TMD is worth considering. Your dentist can assess the joint and muscles directly.
When to see a dentist
Mild clicking without pain is common and does not always require treatment. Many people have jaw clicks that are completely benign and stable.
See a dentist if:
- The clicking is accompanied by pain
- Your jaw locks open or closed, even briefly
- You cannot open your mouth fully (normal opening is roughly 40 to 50 millimetres, or three finger widths)
- Pain is affecting your eating, sleep, or concentration
- You are aware of clenching or grinding during the day or waking with jaw soreness
- Over-the-counter pain relief is not managing the discomfort
Earlier assessment leads to simpler treatment. A TMD case caught when it is primarily muscular responds well to conservative management. A case that has progressed to joint damage may need more involved intervention.
How we assess TMJ problems at Ivy Dental
Assessment starts with a thorough history. When the pain started, what makes it worse, what makes it better, your stress levels, sleep quality, and any history of trauma to the face or jaw.
The clinical examination includes:
- Palpation of the joint and muscles. We feel the joint during opening and closing to assess movement quality, and we palpate the muscles to identify tenderness and trigger points.
- Range of motion measurement. We measure your maximum opening, lateral movement, and whether the jaw deviates to one side during opening.
- Bite assessment. We check how your teeth meet and whether there are premature contacts or interferences that could be loading the joint unevenly.
- Imaging if indicated. A standard dental X-ray (OPG) can show the overall joint shape. If more detail is needed, we may recommend a CBCT scan or refer for an MRI to visualise the disc and soft tissues.
Based on the findings, we classify the problem as primarily muscular, primarily joint-related, or a combination. This determines the treatment approach.
Treatment options
Most TMD cases respond to conservative, non-surgical treatment. Surgery is rarely the first option and is reserved for structural joint problems that do not respond to other approaches.
Occlusal splint therapy. A custom-fitted occlusal splint is one of the most effective treatments for TMD, particularly when grinding or clenching is a contributing factor. The splint is worn at night and provides a stable bite surface that reduces muscle activity and protects the joint. At Ivy Dental, splints are fabricated from a digital scan and adjusted over several appointments to optimise the bite position.
Physiotherapy. A physiotherapist with experience in TMJ rehabilitation can provide manual therapy to release tight muscles, targeted exercises to improve joint mobility and coordination, dry needling for trigger points in jaw and neck muscles, and postural correction. We can refer to practitioners in north Brisbane who specialise in this area.
Self-management. Soft diet during flare-ups, avoiding wide opening (yawning, biting large foods), applying warm packs to the jaw muscles, and awareness of daytime clenching habits all contribute to recovery. Keeping your teeth slightly apart during the day (lips together, teeth apart) reduces resting muscle tension.
Medication. Anti-inflammatory medication (ibuprofen) can manage acute flare-ups. Muscle relaxants may be prescribed short-term for severe muscle spasm. In some cases, low-dose tricyclic antidepressants, which can reduce chronic pain and improve sleep-related grinding, may be considered. These are managed by your dentist or GP and are typically a short-term measure alongside other treatments.
Bite adjustment. If specific teeth are creating premature contacts that load the joint unevenly, minor adjustments to the bite surfaces can reduce the trigger. This is done conservatively and only when clearly indicated by clinical assessment.
Referral for complex cases. If conservative treatment does not resolve the problem after a reasonable period, we can refer to an oral and maxillofacial surgeon or a TMJ specialist for further assessment. This pathway is for a minority of cases.
TMD and sleep
TMD and sleep disorders can overlap. Grinding is more common in people with sleep-disordered breathing, including obstructive sleep apnoea. If you grind your teeth, snore, and wake unrefreshed, both conditions may need investigation.
Ivy Dental offers dental sleep medicine services, including oral appliances for managing sleep apnoea. This is separate from TMD treatment but can be coordinated when both conditions are present.
What to expect long term
Most TMD improves with conservative treatment. Many people experience significant relief within a few weeks to months of starting a management plan.
For some people, TMD is an ongoing condition that flares during stressful periods and requires periodic management. The goal of treatment is reducing pain to manageable levels, preserving jaw function, and protecting teeth from grinding damage.
Book a TMJ assessment at Ivy Dental. Call (07) 3266 7120 or book online. Our Everton Park and Nundah practices are open seven days. If jaw pain is severe or follows trauma, use the emergency booking pathway; timing depends on clinical urgency and clinic capacity.
