If an adult tooth is knocked out, pick it up by the crown (the white part), gently rinse it if dirty, and try to put it back in its socket. If you cannot, keep it in milk and get to a dentist immediately. The best chance of saving the tooth is within 30 to 60 minutes, so speed matters more than anything else.

First aid for a knocked-out adult tooth

  1. Find the tooth and pick it up by the crown only. Do not touch the root.
  2. Rinse briefly with milk or saline if it is dirty, for no more than a few seconds. Do not scrub it or wrap it in tissue.
  3. Put it back in the socket if you can, facing the right way, and hold it in place by gently biting on a clean cloth.
  4. If you can’t replant it, store it in milk, saline or the person’s own saliva. Do not store it in water.
  5. Get to a dentist right away, ideally within 30 minutes. Call ahead so the team is ready.

What about baby teeth?

Do not put a knocked-out baby tooth back in. Replanting can damage the adult tooth developing underneath. Control any bleeding with gauze and see a dentist to check the area.

What happens at the dentist?

We check the tooth and socket, replant or reposition the tooth if needed, and splint it to the neighbouring teeth for a couple of weeks while it reattaches. The tooth may need root canal treatment later. If it cannot be saved, we will discuss replacement options such as an implant.

When to go to the emergency room instead

Go to hospital first if there is a head injury, loss of consciousness, heavy bleeding that will not stop, or a suspected broken jaw.

Preventing dental injuries

A custom-fitted mouthguard for contact sports is the single most effective way to protect teeth from being knocked out.

Frequently asked questions

Can a knocked-out tooth really be saved? Often, yes, if it is replanted or stored correctly and seen quickly.

Why milk and not water? Milk is closer to the body’s natural fluids and helps keep the root cells alive. Water damages them.

What if the tooth is only loose or pushed out of place? Do not try to force it back. See a dentist the same day.


Dental emergency in Johannesburg? Call Melrose Advanced Dentistry now on 072 200 1774.