MRI TMJ Scan for Jaw Pain and Clicking

An MRI TMJ scan shows the jaw joint, its small cushioning disc, the jaw muscles and the bone. It is advised when jaw pain, clicking, locking or limited mouth opening does not improve with simple care, or before jaw surgery. Images are taken with the mouth closed and open to see how the disc moves.

What Is the TMJ?

The temporomandibular joint (TMJ) connects the jaw to the skull in front of each ear. A small disc cushions the joint and slides as you open and close. Problems with the disc, muscles or bone cause pain, clicking, headaches and difficulty chewing. Many cases improve with self-care. See what an MRI scan is.

SymptomWhat MRI may showClicking or popping on openingDisc moves out of place and snaps backLocking with limited openingDisc stuck in front of the jaw bonePain and stiffnessJoint fluid, inflammation, arthritisFacial pain with grindingMuscle strain; bone changes in long-term casesAfter facial injuryFracture or joint damage

When Is MRI Advised?

• Jaw pain or locking for more than a few weeks despite treatment
• Persistent clicking with pain
• Suspected arthritis or inflammation
• Before surgery or arthroscopy
• Jaw problems after trauma

CT shows bone better; MRI shows the disc. See what a CT scan is for the bone view.

How the Scan Is Done

No fasting is needed. Remove dental appliances with metal, earrings and glasses. You lie with a coil placed around each side of the face. The scanner takes images with your mouth closed and then open, using a small bite block. The whole scan takes 20 to 30 minutes. See MRI procedure and MRI safety.

Safety With Braces and Dental Work

Fixed metal braces and large metal dental work can distort images of the face, though the scan is still safe. Tell the staff about braces, implants and fillings, so the radiologist expects possible distortion. Your dentist may advise removing removable parts.

A Practical Example

Aarti, 26, has a clicking jaw with pain when chewing and recent locking. MRI shows that the disc is displaced forward but returns when she opens wide. Her dentist suggests a night splint, jaw exercises, avoiding hard food and stress management. In three months, her symptoms settle without surgery.

Understanding Your Report

The report may mention disc displacement with or without reduction, joint effusion, osteoarthritis or muscle changes. Many people have disc displacement without symptoms, so treatment depends on pain and function, not only the picture.

After the Scan and Next Steps

Take the MRI to a dentist who treats TMJ, an oral and maxillofacial surgeon or an ENT specialist. Most people improve with a soft diet, heat packs, jaw exercises, a night splint and stress management. Injections or surgery are kept for severe cases. Avoid wide yawning, gum chewing and nail biting while healing.

Questions to Ask Your Doctor

• Is my disc out of place, and does it reduce?
• Do I need a splint, therapy or surgery?
• Which habits should I stop?
• Will it get worse over time?

Common Mistakes to Avoid

• Chewing gum or hard food during a flare.
• Forcing the jaw open when locked.
• Ignoring teeth grinding at night.

Booking, Timing and Report

Book a slot of about 45 to 60 minutes, and arrive 15 minutes early for the safety form. Carry your doctor's prescription, implant cards and old scans. Reports are usually ready within 24 to 48 hours, and you can request images on a CD or digital link for your specialist.

Home Care and Key Facts

• Eat soft foods and cut food into small pieces
• Apply a warm pack for 15 minutes a few times a day
• Avoid wide yawning, gum and nail biting
• Practise gentle jaw opening exercises shown by your therapist

Frequently Asked Questions

When is a TMJ MRI needed?

If symptoms persist or before surgery.

Can MRI show the disc?

Yes, it is the best test for it.

Why are images taken with the mouth open?

To see how the disc moves.

Do braces affect the scan?

They can cause distortion.

Do I need contrast?

Rarely.

How long does it take?

About 20 to 30 minutes.

Will I need surgery?

Rarely.

Can stress cause jaw pain?

Yes, through clenching and grinding.

When is the report ready?

Usually 24 to 48 hours.

Book Your Test at Ganesh Diagnostic

Ganesh Diagnostic & Imaging Centre in Rohini, Delhi offers this test with trained radiology staff and clear reports. You can book an appointment online, check our branches across Delhi NCR, contact us for current rates, or explore all our services. Reports can be downloaded online through our patient portal, so you do not need to make a second trip just to collect them.

This article is for general information only. It does not replace advice from your doctor. Always follow your doctor's instructions for your test.

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