Few dental problems feel as alarming as a tooth that suddenly comes out after a fall, a sports knock or an accident. If you are dealing with a knocked-out tooth, the first hour matters most, because quick action gives the tooth its strongest chance of surviving. This guide explains what to do straight away, how to handle a loose tooth after an injury, and what your dentist may do next.
The steps below are simple. However, they work well when you follow them calmly and in the right order. Therefore, it may help to read this page now, before you ever need it.
What to Do Straight Away
Stay calm, find the tooth and hold it only by the white crown. Then try to place it back in its socket, or keep it in milk, and call a dentist as soon as possible. In short, speed and gentle handling are the two things that help most.
Step 1: Pick the Tooth Up Carefully
First, hold the tooth by the crown, which is the white part you normally see in your mouth. Do not touch the root. The root carries delicate cells that help the tooth reattach, so handling it can damage them.
Step 2: Rinse Only if It Is Dirty
If the tooth is dirty, rinse it briefly in milk, saline or your own saliva. Do not scrub it, and do not use soap or alcohol. In addition, avoid holding it under running tap water for long.
Step 3: Try to Put It Back
Next, if you feel able, push the tooth gently back into the gap in the gum. Make sure it faces the right way round. Then bite softly on a clean cloth or handkerchief to hold it in place.
Step 4: Store It Safely if You Cannot Replace It
Sometimes the tooth will not go back in easily. In that case, place it in a small container of milk. Alternatively, an adult can keep it inside the cheek, next to the gums, as long as there is no risk of swallowing it. Do not wrap it in tissue or let it dry out.
Step 5: Call a Dentist Without Delay
Finally, phone a dentist as soon as you can. The NHS advice on a knocked-out tooth recommends the same first steps and says you should ask for an emergency appointment, even if you cannot find the tooth.
Why Timing Matters So Much
A tooth that goes back in quickly has a far better outlook than one that stays dry for a long time. As a rule, replanting within around 30 to 60 minutes gives the most favourable results. After that, the chance of long-term success tends to fall.
This happens because the root surface has living cells. When they dry out, they start to die, and the tooth may not reattach well. For this reason, milk or saliva helps, because both keep those cells moist for longer than water or air.
Even so, do not give up on a knocked-out tooth if more time has passed. Your dentist can still assess the tooth and the socket. In many cases, there are still good options, even if the original tooth cannot stay.
Adult Teeth and Baby Teeth Need Different Care
You should never put a baby tooth back in. Doing so can damage the adult tooth that is developing underneath. Instead, keep the child comfortable, stop any bleeding with gentle pressure, and call a dentist for advice.
With an adult tooth, by contrast, replanting is usually the aim. If you are not sure whether a child’s tooth is a baby tooth or an adult one, keep it in milk and let the dentist decide. Similarly, if a child has also hit their head, arrange a medical check first.
| Situation | Put the Tooth Back? | What to Do Next |
|---|---|---|
| Adult tooth knocked out | Yes, if you can do it gently | Bite on a clean cloth and call a dentist straight away |
| Adult tooth that will not go back | No | Store it in milk or saliva and call a dentist straight away |
| Baby tooth knocked out | No, never | Control bleeding and call a dentist for advice |
| Tooth loose after a knock | Not applicable | Avoid biting on it and call a dentist promptly |
| Head injury, heavy bleeding or jaw pain | Secondary concern | Call 999 or go to A&E first |
What to Do About a Loose Tooth After an Injury
A loose tooth after a knock still counts as urgent, even if it has not fallen out. The tooth may have moved in its socket, and the knock may have strained the tissues that support it. So it is worth calling a dentist promptly rather than waiting to see what happens.
Meanwhile, try not to wiggle the tooth with your tongue or fingers. Eat soft foods and chew on the other side. In addition, a cold compress on the outside of the cheek may ease swelling.
Some loose teeth have nothing to do with injury. For example, an adult tooth can slowly loosen because of gum disease or grinding. In that case, the problem is usually less sudden. Still, a loose adult tooth always deserves a dental check, because early treatment can often protect it.
When to Go to A&E Instead
Sometimes a dental injury comes with a more serious injury. In these cases, you should call 999 or go to A&E before you think about the tooth. A dentist can see you once you are medically safe.
- You lost consciousness, feel confused or have a bad headache after a blow to the head
- Bleeding from the mouth will not stop with firm pressure
- You cannot close your mouth properly, or your jaw looks out of line
- Swelling makes it hard to breathe or swallow
In addition, ask about a tetanus check if the wound is dirty, for instance after a fall outdoors.
How Your Dentist Treats a Knocked-Out Tooth
Your dentist first checks the tooth, the socket and the nearby teeth. Then the clinician usually takes an X-ray to look for damage to the root or bone. After that, the treatment plan depends on how long the tooth was out and how you stored it.
Replanting and Splinting
If the tooth is still healthy, your dentist cleans the socket and places the tooth back in the right position. Next, they fix it to the teeth on either side with a thin, flexible splint. This splint typically stays for around two weeks while the tooth settles.
Follow-Up Care
An injured adult tooth often needs root canal treatment within a couple of weeks, because the nerve inside may not recover. Your dentist also books review visits over the following months. These checks help spot problems early, such as discolouration or changes in the root. If the tooth later becomes painful, our guide to severe toothache explains which signs need urgent attention.
If a tooth is chipped rather than lost, the approach is different. Our guide to chipped tooth bonding explains how your dentist may repair minor damage once the tooth is stable.
What If the Tooth Cannot Be Saved?
Unfortunately, not every tooth can stay in the long term. For example, a tooth may be too damaged, or it may have been dry for too long. In that case, your dentist will talk you through replacement options once the area has healed.
A common choice is a single dental implant, which replaces the root and the crown. Alternatively, dental bridges use the neighbouring teeth for support. Meanwhile, a temporary denture can fill the gap while the socket heals.
Each option has pros and cons, depending on your bite, your gums and your plans. As a result, your dentist will explain what suits your situation and give you a personalised quote at consultation.
Getting Help in Islington
If you have a dental emergency near Islington, call Digismile Group first. During the call, the clinic will ask about your symptoms and decide how soon you need an appointment. In most urgent cases, the clinic can offer an appointment within a week.
For very urgent problems, such as a knocked-out tooth, an appointment in the same week may be possible. However, this depends on your symptoms and on availability, so it is always a conversation rather than a set promise. If the clinic is closed or cannot see you in time, NHS 111 can advise you on other urgent care.
For more detail, read our guide to what counts as a dental emergency. You can also see how the clinic handles urgent visits on our emergency dentist in Islington guide, or visit the emergency dentist page. Digismile Group is at 92 Essex Rd, London N1 8LU.
Frequently Asked Questions
Can a knocked-out adult tooth be saved?
Often, yes. The chance is highest when you put the tooth back in or store it in milk and see a dentist quickly, ideally within an hour.
Should I put a tooth in water?
No. Water can harm the living cells on the root. Instead, use milk, saline or saliva, or keep the tooth inside your cheek if that is safe.
Is a loose tooth an emergency?
A loose tooth after an injury is urgent, so call a dentist promptly. By contrast, a tooth that loosens slowly may point to gum disease and still needs a timely check.
Will I need root canal treatment?
Many replanted adult teeth need root canal treatment within a few weeks, because the nerve may not recover. Your dentist will advise you after the examination.
What if I cannot find the tooth?
Call a dentist anyway. You may have swallowed the tooth, or it may sit deep in the gum. Therefore, your dentist may take an X-ray and then discuss replacement options.
Disclaimer: This article is for general information only and does not replace professional dental or medical advice. Every case is different, so please contact a qualified dentist for an assessment of your own situation. In a medical emergency, call 999 or go to A&E.
