TMJ disorders: treatment, and when to operate

The TMJ — the temporomandibular joint — lets you open, close and move your jaw. TMJ disorders are the second most common chronic musculoskeletal pain condition after low back pain, affecting 6–9% of adults. Most are treated without surgery. So I first measure what hurts and why, and I'll tell you just as clearly when to operate and when not to.

First step

Conservative, reversible care

Diagnosis

History and exam; imaging if it changes the plan

Surgery

For a minority of cases

Consultation

60,000 colones · video visit 20,000 colones

When it's indicated

• Pain in front of the ear, in the jaw or at the temples that won't ease.
• Painful clicking, or a jaw that catches when you open.
• Suddenly not being able to open all the way (a locked jaw).
• A jaw that slips out and is hard to close, or slips out often (dislocation).
• Bruxism — clenching or grinding your teeth — with pain or a tired jaw when you chew.
• Opening that gets more limited over the months, or unexplained changes in your bite.

Before surgery

• Write down when it started, what makes it worse (chewing, yawning, stress) and whether you wake up with a tired jaw.
• Bring any previous imaging and your splint if you wear one. If you don't, message me first: I'll tell you whether you need any.
• Note what you've already tried — splint, physical therapy, medication — and for how long.
• If you live far away, you can start with a video visit: in a small study (16 people), a video exam agreed well with the reference exam for identifying muscle and joint pain.

How I plan it

How I do it

1. 01DiagnosisI explain what hurts — muscle, joint or both — and what to expect from each option.
2. 02Self-careA soft diet during flare-ups, heat, not opening too wide and relaxing your jaw during the day. Current recommendations are to base treatment mainly on this.
3. 03Physical therapy and pain managementMobilization by a physical therapist, supervised exercises, manual therapy and, if the pain is chronic, cognitive behavioral therapy: for pain lasting 3 months or more, the international guideline strongly recommends them. A splint can be added, and works better with exercise than alone.
4. 04ArthrocentesisIf a painful lock or limited opening doesn't improve, the joint is washed out through fine needles, under local anesthesia, as an outpatient procedure. It isn't a first step: the evidence doesn't strongly support it, and for chronic pain in general the international guideline makes a conditional recommendation against it. Done within the first 3 months of conservative care, it may give good results.
5. 05Arthroscopy or open surgeryFor selected cases: ankylosis (a fused joint), dislocation that keeps happening, tumors or advanced joint destruction. It's done in an operating room under general anesthesia; for disc problems it shouldn't be the first treatment.

Recovery

• Conservative care is judged over weeks to months; at each follow-up I measure opening and pain again.
• After arthrocentesis: mild discomfort for a few days, a soft diet and opening exercises from the start.
• Relief can take time: in one review, joint lavage showed less pain than conservative care at 3 and 6 months, but not at 1 month.
• Sometimes it needs repeating: one review suggests 3 to 5 arthrocentesis sessions work better than one.
• After open surgery, recovery takes weeks to months, with physical therapy to regain your opening.
• Physical therapy and home exercises continue after any procedure.

Risks and how I prevent them

Overtreatment

Grinding down teeth, changing the bite or using splints that alter it are not recommended for TMJ disorders. I prevent this by always starting with reversible care.

Discomfort after arthrocentesis

Soreness at the needle sites, swelling in front of the ear and, from the anesthetic, temporary weakness of some facial muscles. It's managed with cold packs, pain relievers and follow-up. Compared with arthroscopy, its complication rate was no different.

It may not help

In a double-blind trial of 60 patients with limited opening and joint pain, all groups improved, with no difference between arthrocentesis and conservative care. If there's no improvement, I review the diagnosis before going further.

Risks of open surgery

It can affect branches of the facial nerve (forehead and eyelid), sensation in front of the ear or the bite, and it carries a risk of infection. It's prevented by planning with a CT scan, protecting the nerve and close follow-up.

Other options

Not operating: self-care and time

A valid choice in many cases. Most people without severe psychosocial impairment tend to improve even without active treatment, and about 70 in 100 internal joint conditions stay stable.

Physical therapy and cognitive behavioral therapy

For chronic pain, compared with placebo, about 36 more people in 100 noticed pain relief with mobilization by a physical therapist or with cognitive behavioral therapy plus biofeedback or relaxation, and 32 more in 100 with manual trigger-point therapy.

Stabilization splint

Reversible, but its effect is uncertain: the Cochrane review (57 studies, 2,846 participants) found insufficient evidence to know whether it works. In another review, adding exercise worked better than the splint alone.

Frequently asked questions