If an adult tooth gets knocked out, pick it up by the white crown (never the root), rinse it briefly in milk or saline if it’s dirty, and try to put it back in the socket, then get to a dentist within 30 to 60 minutes. If you can’t put it back, keep it moist in milk, saline or inside your cheek, and avoid storing it in water or letting it dry out. A knocked-out adult tooth is a true dental emergency where every minute counts, so call an emergency dental clinic right away; baby teeth are different and should not be put back.
Most knocked-out teeth happen during sports, falls, bike accidents or a stray elbow. It’s frightening, and there’s often blood, which makes it look worse than it is. Gums bleed easily, and a little blood mixed with saliva looks like a lot.
Staying calm and following a few simple steps gives the tooth its best chance. When a tooth can’t be saved, dental implants are often the long-term replacement.
Chipped or broken teeth from the same accident may need repairs from our crowns and bridges services. For kids, our family dentistry team handles baby tooth injuries with extra care. Save our number now, and if you need follow-up after an injury, you can book an appointment at our Oakville dental clinic.
Emergency steps for an adult tooth
- Find the tooth and hold it by the crown only.
- If dirty, rinse for a few seconds in milk or saline. Don’t scrub.
- Gently push it back into the socket, facing the right way.
- Bite on clean gauze or a cloth to hold it in place.
- If you can’t replant it, store it in milk, saline or your cheek.
- Get to a dentist within 30 to 60 minutes.
Why speed matters so much
The root of a tooth is covered in living cells called periodontal ligament cells. They’re what reattach the tooth to the bone.
These cells start dying as soon as the tooth dries out. After about 30 to 60 minutes out of the mouth without proper storage, many of them are gone, and the chance of the tooth reattaching drops sharply.
That’s why the best place for a knocked-out tooth is back in its socket, and the second best is in a safe liquid. If you’re with a child or teen who’s panicking, a parent or coach can replant the tooth for them. It feels strange, but a gentle push into place is usually all it takes.
Best and worst ways to store a knocked-out tooth
| Storage | Good or bad? | Why |
|---|---|---|
| Back in the socket | Best | Keeps root cells alive in their natural place |
| Cold milk | Very good | Similar balance of salts to body fluids |
| Saline or contact lens solution (saline) | Good | Keeps cells moist |
| Inside your cheek (adults only) | Okay | Saliva keeps the tooth moist, but don’t swallow it |
| Tooth preservation kit | Very good | Designed for this, worth having in sports bags |
| Tap water | Poor | Damages root cells over time |
| Dry in a tissue or pocket | Worst | Root cells die quickly |
Safety note: Never put a knocked-out baby tooth back in. It can damage the adult tooth developing underneath. For any injury with loss of consciousness, vomiting, confusion, a broken jaw, or bleeding that won’t stop, go to the emergency department first. Check that the person’s tetanus vaccine is up to date if the tooth landed on dirt.
What to do with a knocked-out baby tooth
- Comfort your child and check for other injuries.
- Rinse their mouth gently with water.
- Press a clean cloth on the area to stop bleeding.
- Keep the tooth if you find it, but don’t put it back.
- Call your dentist the same day to check the area and the adult tooth underneath.
What happens at the dental office?
- Assessment. The dentist checks the socket, nearby teeth, gums and jaw.
- Imaging. X-rays, and sometimes a CBCT 3D scan, look for root or bone fractures.
- Replanting. If the tooth isn’t already back in, it’s gently cleaned and placed into the socket.
- Splinting. A thin, flexible wire is bonded to the teeth on either side to hold it steady, usually for about 2 weeks.
- Medication. Antibiotics may be prescribed, and tetanus status is checked.
- Root canal planning. For adult teeth with fully formed roots, a root canal is usually started within 1 to 2 weeks, since the nerve rarely survives.
- Follow-up. Regular checks over the following months and years watch for healing or problems.
Your first visit after a dental injury, step by step
- Call ahead so the team can prepare a room and imaging.
- Bring the tooth in milk or saline, even if you’ve already replanted it and it fell out again.
- Share what happened, including how the injury occurred and how long the tooth was out.
- Expect an exam of the whole mouth, since nearby teeth and the jaw can be injured too.
- Leave with a written plan covering the splint, medications, diet and follow-up dates.
Most emergency injury visits take about 1 hour, depending on how many teeth are involved.
Can a knocked-out tooth really be saved?
Often, yes, especially when it’s replanted within minutes. Many replanted teeth last for years.
Some replanted teeth slowly fuse to the bone and are gradually replaced by bone over time, a process called replacement resorption. This is more common when the tooth was dry for longer. Even then, the tooth can serve for years, which matters a lot for children and teens who are too young for implants.
Other tooth injuries from the same accident
| Injury | What it looks like | Usual treatment |
|---|---|---|
| Chipped tooth | Small piece broken off | Bonding or a CEREC same-day restoration |
| Fractured tooth with nerve exposed | Pink or red spot in the broken area | Root canal or pulp treatment, then a crown |
| Loosened tooth | Tooth wobbles but is still in place | Repositioning and splinting |
| Pushed-in tooth | Tooth looks shorter | Repositioning, monitoring, sometimes orthodontics |
| Pushed-out tooth | Tooth looks longer | Repositioning and splinting |
Traditional crowns vs CEREC same-day crowns after an injury
If a damaged tooth needs a crown later, there are 2 main routes.
| Traditional crown | CEREC same-day crown | |
|---|---|---|
| Visits | Usually 2 | Usually 1 |
| Temporary crown | Yes, for about 2 weeks | No |
| Impressions | Often putty trays | Digital scan |
| Best for | Complex cases or special materials | Many single-tooth repairs |
How dental injuries connect to overall health
A knocked-out tooth can be the most visible part of a bigger injury. Head injuries, jaw fractures and concussions sometimes happen at the same time. That’s why the complete health approach looks beyond the tooth itself.
Missing front teeth can also affect speech, confidence and how well you bite food, which matters for nutrition, especially in older adults.
Caring for a replanted tooth at home
- Eat soft foods for about 2 weeks while the splint is on
- Avoid biting into anything with the front teeth
- Brush gently with a soft brush after every meal
- Rinse with an antibacterial mouthwash if one is prescribed
- Avoid contact sports until your dentist says it’s safe
- Keep every follow-up visit, even if the tooth feels fine
Contact your dentist if the tooth darkens, the gum swells, or the tooth becomes more painful or loose over time.
Mouthguard options compared
| Type | Fit | Protection | Comfort |
|---|---|---|---|
| Stock (ready-made) | Loose, one size | Basic | Bulky, harder to talk |
| Boil-and-bite | Moulded at home | Moderate | Better, can still feel thick |
| Custom-made by a dentist | Made from a scan or impression of your teeth | Best | Thinnest and most comfortable |
A custom mouthguard stays in place better during impact, which is when it matters most.
Build a simple dental emergency kit
Keep one in your car, sports bag or child’s hockey bag.
- A small container with a lid
- A tooth preservation solution, or a single-serve milk if practical
- Clean gauze
- Gloves
- A cold pack
- Your dentist’s phone number written on a card
What if it happens after hours?
Call your dental office first, since many have an after-hours message with instructions. If you can’t reach a dentist and the tooth can’t be replanted, keep it stored in milk or saline and go to an emergency department, especially if there are other injuries. Then follow up with a dentist as soon as possible for splinting and long-term care.
Common mistakes in the first hour
- Picking up the tooth by the root
- Scrubbing the root clean
- Wrapping the tooth in a tissue
- Storing it in tap water
- Waiting to see if it “settles down” before calling anyone
- Putting a baby tooth back in
How to prevent dental injuries
- Wear a mouthguard for hockey, basketball, soccer, martial arts and skateboarding.
- Choose a custom-fitted guard for the best protection and comfort.
- Use car seats and seatbelts correctly.
- Childproof sharp furniture corners for toddlers.
- Avoid using teeth as tools for opening bottles or packages.
- Keep a tooth preservation kit or a small container in sports bags.
Real situations
The hockey game. A 16-year-old loses an upper front tooth on the ice. His coach rinses it in milk and puts it back in. He’s seen within 40 minutes, the tooth is splinted, and it’s still in place a year later after a root canal.
The tissue mistake. An adult wraps her knocked-out tooth in a tissue and comes in 3 hours later. The tooth is replanted, but over time it’s slowly replaced by bone, and an implant is planned for later.
The toddler fall. A 3-year-old knocks out a baby tooth on a coffee table. The tooth isn’t replanted. The dentist checks the area, and the adult tooth comes in normally years later.
Choosing an emergency dental clinic in Oakville
Look for a clinic that answers urgent calls quickly, has imaging on-site and can splint and restore teeth. Every dentist treating you should be registered with the Royal College of Dental Surgeons of Ontario (RCDSO).
Emergency care at Palermo Village Dental
Palermo Village Dental is one of the best dental clinics in Oakville, with a vision to make 10,000 people in Oakville healthier within 10 years. We specialize in complete health dentistry, which connects oral health to overall systemic wellness. If you’re looking for a emergency dental clinic in Oakville, we’re at Suite #290, 2525 Old Bronte Rd, Oakville, ON L6M 4J2, with free on-site parking.
Our technology includes CEREC same-day crowns, the SOLEA laser, CBCT 3D imaging, MATRx Plus home sleep testing, the SleepImage Ring and Solea Sleep laser treatment for snoring. Alongside general, family, cosmetic, restorative, implant and emergency dentistry, we provide sleep apnea screening and management.
Our hours are Monday to Wednesday 9 AM to 5 PM, Thursday 9 AM to 6:30 PM, Friday 9 AM to 1 PM by appointment, and Saturday by appointment. Call 647-584-0017 or email info@palermovillagedental.com.
Questions about knocked-out teeth
How long do you have to save a knocked-out tooth?
The best chance is within 30 to 60 minutes, ideally with the tooth back in the socket or kept moist in milk or saline. After that, the chance of reattachment drops.
Should I put a knocked-out tooth in water?
No. Tap water can damage the root cells. Milk, saline, a tooth preservation kit or the inside of the cheek (for adults) are better options.
Can you put a baby tooth back in?
No. Replanting a baby tooth can damage the adult tooth developing underneath. See a dentist to check the area.
Will a replanted tooth need a root canal?
Adult teeth with fully formed roots usually need a root canal within 1 to 2 weeks after being replanted.
What if the tooth can’t be saved?
Options include dental implants, bridges or removable replacements. For young patients, temporary solutions are often used until the jaw finishes growing.
Conclusion
For a knocked-out adult tooth, hold it by the crown, put it back or keep it in milk, and see a dentist within the hour.
Never store it dry or in water, and never replant a baby tooth.
Palermo Village Dental can see dental emergencies quickly and help save the tooth whenever possible.
