If an adult tooth is knocked out, act immediately: pick it up by the crown, not the root, rinse it briefly if dirty, and gently put it back in the socket if you can. If not, keep it in milk or in the person’s mouth against the cheek, and get to a dentist right away. Western Australia Health advises that teeth replanted within 30 minutes are the most likely to survive. Do not put a baby tooth back in. This guide covers avulsed tooth first aid step by step, what to avoid, and what happens when you reach a dentist in Thunder Bay.
First Aid for a Knocked-Out Adult Tooth
A tooth that has been completely knocked out of its socket is called an avulsed tooth. These avulsed tooth first aid steps apply to permanent (adult) teeth:
- Stay calm and find the tooth. Check the area, clothing, and the person’s mouth.
- Hold it by the crown. The crown is the white part you normally see. Do not touch the root, which has delicate cells needed for reattachment.
- Rinse briefly if dirty. Rinse in milk, or for a few seconds under cold running water. Do not scrub, use soap, or dry it.
- Put it back in the socket if you can. Push it gently into place, facing the right way, using the neighbouring teeth as a guide.
- Hold it in place. Bite gently on a clean cloth or use finger pressure.
- Get to a dentist immediately. If possible, have someone call ahead.
These steps follow guidance from Western Australia Health on a knocked out tooth.
How Should You Store the Tooth If You Cannot Put It Back?
If the tooth cannot be replanted, it must not dry out.
Storage option | Notes |
Milk | A good choice; cover the tooth completely |
In the person’s mouth, between cheek and gum | Only for older children and adults who will not swallow it |
Saliva in a container or plastic wrap | If milk is not available |
Saline from a first aid kit | Useful for short-term storage |
Do not store the tooth in plain water, put it on ice, or wrap it in a dry tissue. Keeping long-life milk in a first aid kit is a simple way to be prepared.
Why Is Time So Important?
The root of a tooth is covered with living cells that help it reattach to the bone. Once the tooth is out of the mouth, these cells begin to die, especially if the tooth dries out. The sooner the tooth is replanted, the better its chance of reattaching. That is why replanting at the scene, or getting to a dentist as quickly as possible, matters so much.
What About a Knocked-Out Baby Tooth?
Do not put a baby tooth back in. Replanting a baby tooth can damage the adult tooth developing underneath. Still bring your child to a dentist, who can check the socket, look for other injuries, and make sure the area is healing. If you are not sure whether the tooth is a baby or adult tooth, keep it in milk and ask the dentist.
Mistakes to Avoid
- Holding or rubbing the root
- Scrubbing the tooth or using soap or disinfectant
- Letting the tooth dry out
- Storing the tooth in plain water
- Removing any tissue attached to the root
- Waiting to see whether things improve
- Replanting a baby tooth
When Should You Go to the Hospital Instead?
Go to the nearest emergency department or call 911 if the injury that knocked out the tooth also caused:
- A head injury, confusion, dizziness, or loss of consciousness
- Bleeding that will not stop with steady pressure
- A possible broken jaw or serious facial injury
- Difficulty breathing or swallowing
Bring the tooth with you, stored in milk. Once serious injuries are managed, a dentist can assess the tooth. The ADA’s MouthHealthy guide to dental emergencies also covers knocked-out teeth.
What Happens When You Arrive at the Dentist?
- Assessment: the dentist checks the tooth, socket, neighbouring teeth, gums, and lips, and asks how and when the injury happened.
- X-rays: these check for root or bone fractures and other damaged teeth.
- Replantation or repositioning: if the tooth is still out, it may be gently cleaned and placed back in the socket. If you replanted it already, the dentist checks its position.
- Splinting: the tooth is usually held in place with a flexible splint bonded to the neighbouring teeth while it heals.
- Follow-up: you receive instructions and follow-up visits are planned.
Whether a tooth can be saved depends on how long it was out, how it was stored, and the extent of the injury. No dentist can guarantee that a replanted tooth will survive.
What Happens After a Tooth Is Replanted?
Stage | What to expect |
First days | Soft diet, careful cleaning, possible antibiotics as prescribed |
First weeks | Splint stays in place while the tooth stabilizes |
Following weeks | Many replanted adult teeth need root canal therapy, depending on root development |
Following months and years | Regular check-ups and X-rays to monitor healing |
Your dentist will explain whether root canal therapy in Thunder Bay is likely to be needed and when. Keep every follow-up appointment, since problems such as root changes can develop without pain.
Home Care After a Replanted Tooth
- Eat soft foods and avoid biting on the injured tooth.
- Brush gently with a soft toothbrush and rinse as instructed.
- Take any prescribed medication exactly as directed.
- Avoid contact sports until your dentist says it is safe.
- Contact the office if pain, swelling, or looseness increases.
What If the Tooth Cannot Be Saved?
Sometimes a tooth cannot be replanted or does not survive long term. Your dentist will explain the options for replacing it. For adults, these may include a dental implant in Thunder Bay, a bridge, or a partial denture. For children and teens whose jaws are still growing, temporary options are often used until growth is complete. Learn more about crowns and bridges in Thunder Bay.
How Can You Prevent a Knocked-Out Tooth?
- Wear a properly fitted mouthguard for hockey, football, basketball, martial arts, and other contact sports.
- Use helmets with face protection where appropriate.
- Childproof the home to reduce falls for young children.
- Avoid using teeth as tools.
What If You Cannot Find the Tooth?
See a dentist right away. The tooth may have been pushed into the gum, broken, or inhaled or swallowed. The dentist can check the socket, take X-rays, and look for injuries to the jaw or neighbouring teeth.
Avulsed Tooth First Aid at a Glance
Step | What to do | Why it matters |
1 | Find the tooth | Time starts at the moment of injury |
2 | Hold it by the crown | Protects the root cells |
3 | Rinse briefly if dirty | Removes debris without damaging cells |
4 | Replant if possible | The socket is where the tooth can reattach |
5 | Otherwise, store in milk or the mouth | Keeps root cells moist |
6 | Get to a dentist immediately | Faster treatment improves the chances |
Knocked-Out Teeth in Sports
Sports are a common cause of knocked-out teeth, especially in hockey, football, basketball, rugby, martial arts, and skateboarding. Coaches, parents, and athletes can be prepared by keeping long-life milk or a tooth preservation kit in the first aid kit and knowing the first aid steps. A properly fitted mouthguard reduces the risk of dental injuries. Ask your dentist about a custom mouthguard if you or your child plays contact sports.
Teeth That Are Loosened or Pushed Out of Place
Not every injury knocks a tooth out completely. A tooth may be loosened, pushed into the gum, or moved out of position. These injuries also need prompt care. Do not try to wiggle the tooth or force it back. Bite gently on a clean cloth, use a cold compress for swelling, and contact a dentist right away.
Teaching Children What to Do
Older children and teens can learn the basics: find the tooth, hold it by the white part, do not scrub it, keep it moist, and tell an adult right away. Knowing these steps in advance can save valuable minutes. Teachers and coaches can benefit from the same information.
Will the Tooth Look Normal Again?
A replanted tooth may darken over time if the nerve inside does not recover. Treatments such as root canal therapy, internal whitening, bonding, or a crown can help, depending on the situation. Your dentist will monitor the tooth at follow-up visits and explain options if its appearance changes.
What If Several Teeth Were Injured?
Injuries that knock out one tooth can also loosen, chip, or push other teeth out of place. Check the mouth carefully, collect any pieces you find, and tell the dentist about every tooth that feels different. X-rays help the dentist find injuries that are not visible.
Can a Tooth Be Replanted After a Long Time?
The longer a tooth has been out of the mouth, especially if it dried out, the lower the chance it will reattach. However, a dentist may still attempt replantation in some cases, so bring the tooth even if time has passed. The dentist will explain the likely outlook and the alternatives.
Emergency Contacts to Keep Handy
Save your dentist’s details in your phone and keep a small first aid kit with gauze, a container, and long-life milk in your car, sports bag, or at home. Being prepared can save time when it matters most.
Common Myths About Knocked-Out Teeth
- “A knocked-out tooth can’t be saved.” Adult teeth replanted quickly are more likely to survive.
- “Clean the tooth thoroughly first.” Scrubbing damages the root cells; rinse briefly only.
- “Water is fine for storage.” Milk, saliva, or saline are better choices.
- “Baby teeth should be put back.” Replanting baby teeth can harm the adult tooth underneath.
Knocked-Out Tooth Summary
For an adult tooth, every minute counts. Hold it by the crown, rinse briefly only if dirty, replant it if you can, or keep it in milk or the person’s mouth, and get to a dentist immediately. For a baby tooth, do not replant it, but still see a dentist. Go to hospital first if there is a head injury, uncontrolled bleeding, or a possible broken jaw.
Preparing a Dental First Aid Kit
A small kit makes it easier to act quickly. Include clean gauze, a small container with a lid, long-life milk or a tooth preservation solution, a cold pack, and your dentist’s contact details. Keep one at home, in the car, and in sports bags for families with active children.
Key Takeaways
- Act fast: teeth replanted within 30 minutes are the most likely to survive.
- Hold the tooth by the crown, rinse briefly, and replant if you can.
- If not, store it in milk or in the person’s mouth, never in water.
- Do not replant baby teeth, but still see a dentist.
- Go to hospital for head injuries, uncontrolled bleeding, or a possible broken jaw.
Frequently Asked Questions
Can a knocked-out tooth always be saved?
No. Success depends on how quickly the tooth is replanted, how it was handled and stored, and the extent of the injury.
What should I do with a knocked-out baby tooth?
Do not put it back. Bring your child to a dentist to check the socket and the developing adult tooth.
Is milk a good way to store a knocked-out tooth?
Milk is a recommended storage option because it helps keep root cells alive. Saliva or saline are alternatives. Do not use plain water.
Should I go to the emergency room or a dentist?
Go to hospital first for head injuries, uncontrolled bleeding, or a possible broken jaw. Otherwise, go straight to a dentist.
Will I need a root canal after a tooth is replanted?
Many replanted adult teeth need root canal therapy, depending on how developed the root is. Your dentist will advise you.
Act Quickly After a Dental Injury
If a tooth has been knocked out, follow the first aid steps above and contact a dentist immediately. Sky Dental Centre offers emergency dentistry, with same-day urgent care when possible. Contact Sky Dental Centre at 2817 Arthur St E in Thunder Bay, or learn more about our emergency dentistry in Thunder Bay. Related guides cover a broken tooth emergency and when a toothache needs a dentist.
*This article is general information, not dental advice for your situation.*