TL;DR: A knocked-out adult tooth needs urgent dental care, ideally within an hour, because the chance of saving it falls with time. Handle it by the crown, not the root, and avoid scrubbing it. Do not replant a baby tooth. Call NHS 111 or a dentist at once, and call 999 for a serious head or face injury. This guide has 9 sections and answers 3 frequently asked questions. It lists 5 primary sources, from NHS.uk and sja.org.uk. Facts were checked on 2026-10-13; it is educational information, not clinical advice.
Educational information only, not clinical advice. Facts are checked against the primary sources listed under Sources (NHS.uk, GDC, CQC and peer-reviewed research), last checked 13 October 2026.
Is a knocked-out tooth an emergency?
Yes. A knocked-out permanent tooth is a time-critical dental emergency. Cells on the root surface stay alive for only a short time outside the mouth, so speed matters. Dentists and first-aid organisations advise seeking urgent care immediately.
What should I do first?
Check for injuries beyond the mouth. If there is loss of consciousness, vomiting, confusion, a suspected broken jaw, or bleeding that will not stop, call 999. If the person is otherwise well, act quickly on the tooth and contact a dentist or NHS 111 straight away.
How do I handle the tooth?
General first-aid guidance is as follows:
- Pick up the tooth by the crown, the white chewing part, never by the root.
- If dirty, rinse it very briefly with milk or clean water, without scrubbing or removing any tissue.
- If the person is an adult or older child and calm, try to place the tooth gently back in its socket and have them bite on a clean cloth to hold it.
- If it cannot be replanted, keep the tooth moist in milk or in the cheek, and take it with you. Do not store it in tap water or let it dry.
Follow instructions from NHS 111 or the dentist, who may give different advice for the case.
What about a baby tooth?
Do not put a knocked-out baby tooth back in the socket, because replanting can damage the developing adult tooth underneath. Contact a dentist or NHS 111 for advice on the injury. The child may still need checking for damage to the gum and other teeth.
Who do I call?
Ring your dentist first in opening hours and say the tooth is knocked out. Otherwise, use NHS 111 online at 111.nhs.uk or by phone for urgent dental access. For a serious injury, call 999. See emergency dentist in Essex.
What happens at the dentist?
The dentist checks the tooth and socket, may replant the tooth, and may splint it to neighbouring teeth for a period. Follow-up visits and X-rays monitor healing, and root canal treatment is sometimes needed later. Success cannot be guaranteed.
Where can I find a dentist?
You can browse Essex dentists in the Essex directory. For pain management before you are seen, see toothache relief at home.
Why not wait for a routine appointment?
For an adult tooth, time out of the mouth matters, so book as an emergency and say “knocked-out adult tooth” on the phone. A baby tooth is different: do not push it back, because that can harm the adult tooth underneath.
Dentists use the International Association of Dental Traumatology (IADT) guidelines. They treat the time the tooth spent dry as the key factor: if it has been out of the mouth dry for under 60 minutes, the cells that help it re-attach are impaired but may still be viable, and beyond about 60 minutes they are probably not. A tooth kept in milk or saliva is better protected than one left dry. This is why speed matters.
Action card
Adult tooth
- Pick it up by the crown (the white part), not the root.
- If dirty, rinse it gently in milk, saline or saliva. Do not scrub.
- If possible, gently place it back in the socket and bite on a soft cloth.
- If it will not go back in, keep it in milk or saliva. Do not ask a young child to hold it in their cheek, in case they swallow it.
- See a dentist as soon as possible, even if you cannot find the tooth. Call NHS 111 if you have no dentist or cannot get an emergency appointment. For a serious head or face injury, go to A&E or call 999.
Baby tooth
- Do not put it back in. Stop bleeding with clean gauze and phone a dentist for advice.
To find a practice, browse dentists in Essex by district.
FAQ
Can a knocked-out tooth be saved after an hour?
Chances fall with time, but seek care anyway, because a dentist can still assess the tooth.
Should I clean the tooth with soap?
No. Rinse briefly with milk or clean water and do not scrub.
Is milk really better than water?
Milk is commonly advised for short-term storage, but follow the instructions from NHS 111 or your dentist.
Sources
- NHS.uk, Dental emergencies and urgent care: https://www.nhs.uk/nhs-services/dentists/
- St John Ambulance, First aid advice: https://www.sja.org.uk/
- NHS 111 online: https://111.nhs.uk/
- NHS.uk, Knocked-out tooth: https://www.nhs.uk/conditions/knocked-out-tooth/
- NHS.uk, How to find an emergency or urgent NHS dentist appointment: https://www.nhs.uk/nhs-services/dentists/how-to-find-an-nhs-dentist-in-an-emergency/