Tooth Knocked Out? Here's What to Do Within 30 Minutes

By Dr. Jane Collins | April 02, 2025

Illustration of tooth avulsion emergency

A knocked-out tooth (medically known as an avulsed tooth) is one of the most frightening dental emergencies. Whether it happens on the sports field or due to an accident, panic is the natural reaction.

However, quick thinking can save your smile. If you act fast and follow the right steps, there is a high chance the tooth can be successfully re-implanted. The clock starts ticking the moment the tooth leaves your mouth.

Step 1: Find the Tooth and Pick It Up Correctly

Locate the tooth immediately. When you pick it up, handle it **only by the crown** (the white part you use to chew). **DO NOT touch the root.** The root contains delicate cells and ligaments that are needed for reattachment. Touching them can damage these cells and reduce the chance of success.

Step 2: Clean It Gently (If Necessary)

If the tooth has fallen in dirt, rinse it briefly with milk or saline solution. If neither is available, use water, but only for a second or two. **Do not scrub the tooth**, do not use soap, and do not dry it with a towel. You want to keep those root cells alive and hydrated.

Step 3: Try to Re-insert the Tooth

This sounds scary, but it's the best place for the tooth to be. Gently slip the tooth back into its socket in the gum. Make sure it is facing the right way. Bite down gently on a clean piece of gauze or a handkerchief to hold it in place.

Step 4: Store It Safely (If You Can't Re-insert)

If you can't get the tooth back in the socket, you must keep it moist. The best liquid is **cold milk**. Milk has the right pH balance and proteins to keep the root cells alive.

Option A: A cup of milk.
Option B: Hold it inside your mouth, between your cheek and gum (be careful not to swallow it!).
Option C: Use an emergency tooth preservation kit (found in some first aid kits).
Last Resort: Water (it is not ideal as it can cause cells to swell and burst, but it's better than dry air).

Step 5: Get to a Dentist Immediately

You need to see a dentist within **30 to 60 minutes**. After 60 minutes, the survival rate of the tooth drops significantly. Call our 24/7 hotline while you are on the way so the dentist can prepare for your arrival.

What About Baby Teeth?

These instructions apply to **permanent (adult) teeth only**. Do not try to re-insert a knocked-out baby tooth, as this can damage the developing adult tooth underneath. If your child knocks out a baby tooth, apply pressure to stop bleeding and see a dentist to ensure no fragments remain.