Why Does My Jaw Click When I Chew? Causes and Solutions

Click. Pop. Every bite of food comes with a soundtrack from your jaw. You might wonder if something's dislocating, or if you're causing permanent damage. Jaw clicking is incredibly common—affecting up to 40% of people—and usually not as serious as it sounds.

Understanding the TMJ

The temporomandibular joint (TMJ) is where your jaw meets your skull. It's a complex joint with:

• A disc (like a small cushion) between the bones
• Muscles controlling opening, closing, and side movement
• Ligaments holding everything in place

This joint moves thousands of times daily—chewing, talking, yawning—making it susceptible to problems.

What Causes the Click

Disc Displacement

The most common cause of TMJ clicking.

What happens:

• The disc shifts out of its normal position
• When you open your mouth, the jaw slides over the disc
• This creates the click
• Closing may produce another click as the disc moves back

Types:

• With reduction: Disc moves out of place, then pops back (clicking)
• Without reduction: Disc stays displaced (may cause locking)

Muscle Tension

Tight jaw muscles can alter how the joint moves.

Contributors:

• Stress and anxiety
• Clenching during the day
• Grinding at night (bruxism)
• Poor posture (forward head position)

Ligament Laxity

Some people have naturally loose ligaments.

Characteristics:

• May be hypermobile elsewhere (elbows, fingers)
• Clicking since adolescence
• Usually painless
• Often both sides

Arthritis

Joint surface changes can cause clicking and grinding.

Signs:

• Gradual onset with age
• Grinding (crepitus) more than clicking
• Morning stiffness
• May have reduced range of motion

Trauma

Injury can damage the disc or joint structures.

Causes:

• Blow to the jaw
• Whiplash (surprisingly common cause)
• Prolonged dental work with mouth wide open
• Intubation for surgery

When Clicking Is Concerning

Seek evaluation if you have:

• Pain with the clicking
• Locking (jaw gets stuck open or closed)
• Significant change in bite
• Clicking getting progressively worse
• Difficulty chewing or opening mouth
• Facial swelling
• Ear pain or hearing changes

Usually not concerning:

• Painless clicking that's been present for years
• Clicking that doesn't affect function
• Occasional clicking without other symptoms

Self-Assessment

Does it hurt? Pain-free clicking is usually benign.

Can you open fully? Measure: 40-50mm (about 3 finger widths) is normal.

Is it getting worse? Stable clicking is less concerning than progressive.

Does your jaw lock? Locking suggests more significant disc displacement.

Solutions

Habit Modification

Stop clenching:

• Lips together, teeth apart
• Check in throughout the day
• Set phone reminders initially

Posture matters:

• Forward head posture strains the TMJ
• Chin tucks help
• Proper workstation ergonomics

Chewing habits:

• Avoid chewing gum
• Don't bite nails or pens
• Cut food into smaller pieces
• Chew on both sides evenly

Protect your jaw:

• Don't open extremely wide (limit yawning)
• Support jaw when yawning
• Avoid hard, chewy foods during flare-ups

Jaw Exercises

Controlled opening:

1. Place tongue on roof of mouth
2. Slowly open mouth while keeping tongue up
3. This prevents the jaw from shifting forward
4. 10 reps, several times daily

Resisted opening:

1. Place fist under chin
2. Open mouth against gentle resistance
3. Hold 5 seconds
4. 10 reps

Resisted closing:

1. Place thumbs under chin, fingers on lower teeth
2. Close mouth against gentle resistance
3. Hold 5 seconds
4. 10 reps

Lateral movements:

1. Shift jaw gently to one side
2. Hold 5 seconds
3. Return to center, go other side
4. 10 each direction

Stretching

Jaw stretch:

1. Open mouth comfortably wide
2. Place fingers on lower front teeth
3. Gently stretch open a bit more
4. Hold 10-15 seconds
5. 5 reps

Masseter massage:

1. Find the muscle at the angle of your jaw
2. Apply firm pressure
3. Make small circles
4. 1-2 minutes each side

Temporalis massage:

1. Find the muscle at your temple
2. Clench teeth to feel it contract
3. Release and massage in circles
4. 1-2 minutes each side

Heat and Ice

Heat:

• Moist heat on jaw muscles
• 15-20 minutes
• Relaxes tight muscles
• Use before stretching

Ice:

• For acute pain or inflammation
• 15 minutes at a time
• Wrap in cloth to protect skin

Night Guard

If you clench or grind at night:

• Custom-fitted by dentist is best
• Over-the-counter options available
• Protects teeth and reduces muscle strain
• May reduce clicking over time

Stress Management

Stress drives jaw clenching:

• Deep breathing exercises
• Progressive muscle relaxation
• Regular exercise
• Adequate sleep
• Address underlying anxiety if significant

What Doesn't Help

Forcing the click: Don't repeatedly open and close to make it pop—this can irritate the joint

Extreme stretching: Aggressive stretching can worsen disc displacement

Ignoring locking episodes: If your jaw gets stuck, this needs professional attention

Professional Treatment Options

Physical therapy:

• Manual therapy to improve joint mobility
• Targeted exercises
• Posture correction
• Dry needling for muscle tension

Dental evaluation:

• Check for bite problems
• Custom night guard
• Occlusal adjustments if needed

Medications:

• Muscle relaxants for acute episodes
• NSAIDs for inflammation
• Tricyclic antidepressants (low dose) for chronic pain

Injections:

• Trigger point injections for muscle pain
• Corticosteroid into joint (occasionally)
• Botox for severe clenching

Surgery (rare):

• Arthrocentesis (joint lavage)
• Arthroscopy
• Open joint surgery
• Only for severe cases failing conservative treatment

Recovery Expectations

Painless clicking: May never fully resolve but doesn't need to—it's often just noise

Painful TMD: 80-90% improve with conservative treatment

Timeline: Most improvement in 4-8 weeks with consistent self-care

The Bottom Line

Jaw clicking is common and usually not serious. If it's painless and your jaw works fine, it's probably just how your joint is built. If clicking comes with pain, locking, or functional problems, address it with habit modification, exercises, and stress reduction. Most TMJ issues resolve without surgery. Your jaw is resilient—give it some TLC and it will likely quiet down.