Jaw Dislocation

Causes

Anything that causes extreme opening of the mouth can cause a jaw dislocation. This includes:

• Eating.

• Yawning.

• Laughing.

• Vomiting.

• Kissing.

• Dental treatment.

• Trauma.

Symptoms

Symptoms of jaw dislocation include:

• Inability to close the mouth.

• Pain.

• Drooling.

• Trouble speaking.

Right after a dislocation, the jaw muscles often go into spasm. This prevents the jawbone from sliding back into the joint. To treat this, a dentist or oral surgeon must guide the mandible back into the joint. I.V. (intravenous) medicines are often used to reduce the muscle spasm and keep you comfortable.

You may be given a bandage or soft collar. This is to keep your mouth from opening widely.

You may have another jaw dislocation. You are more at risk during the next 6 weeks. It generally takes 6 to 8 weeks for the joint to heal. Repeated jaw dislocation may cause arthritis and chronic pain at the joint. In these cases, surgery may be needed to prevent more dislocations.

Home care

• Use warm compresses on the jaw for 10 to 15 minutes at a time for the first 24 hours. Try making a washcloth damp with warm water.

• You can take acetaminophen or ibuprofen for pain, unless you were given a different pain medicine to use. Talk with your dentist or oral surgeon before using these medicines if you have chronic liver or kidney disease, have ever had a stomach ulcer or gastrointestinal bleeding, or are taking blood-thinning medicines. Do not give aspirin to children or teens unless your child’s doctor says it is safe. Aspirin can put your child at risk for Reye syndrome, a rare but serious condition that is most often harmful to the brain and the liver.

• For the first week, eat only soft foods. These include gelatin, cooked cereal, ice cream, applesauce, bananas, eggs, pasta, cottage cheese, soups, and yogurt.

• As directed by your dentist or oral surgeon, for the next 3 to 6 weeks, don’t open your mouth wide. Try not to bite large pieces of food, scream or yell, or sing.

• Also be careful when you yawn. If you need to yawn, put your fist under your chin to prevent your mouth from opening too wide.

Follow-up care

Follow up with your dentist or oral surgeon, or as advised. If X-rays were taken, they will be reviewed by a specialist. You will be told the results, and if they affect your treatment.

Call 911

Call 911 if you have:

• Trouble breathing or swallowing.

• Wheezing.

• Confusion.

• Extreme drowsiness or trouble awakening.

• Fainting or loss of consciousness.

• A rapid, racing heart rate.

When to get medical advice

Call your dentist or oral surgeon right away if you have:

• Jaw pain not relieved by the pain medicine.

• The inability to close your mouth fully (recurrent dislocation).