If your kid knocks out a permanent tooth, act as fast as possible:
- Pick it up by the crown (not the root)
- Rinse the tooth gently
- Place it back in the socket if possible
- Get to a dentist within 30 minutes
If it’s a baby tooth, never put it back in. For a baby tooth, call your dentist.
For a chipped tooth, save the fragments and book a same-day visit.
As parents, we are familiar with playground falls, stray elbows at practice, and collisions with the coffee table. Dental injuries are among the most common childhood accidents, and what you do in the first half hour can make all the difference.
In this guide, learn exactly what to do (step by step) before you reach the dental office.
What do I do if my child knocks out a permanent tooth?
Keep calm. A knocked-out (avulsed) permanent tooth is a true dental emergency, but it can often be saved if you move quickly. Follow these steps:
- Pick it up by the crown: Touch only the crown, the white part used for chewing. The root is covered in living cells that must survive for the tooth to reattach.
- Rinse, don’t scrub: If it’s dirty, rinse it briefly with milk or cool water. No scrubbing, no soap, no wrapping it in a tissue — all of these damage the root cells.
- Try to reinsert it: Gently push the tooth back into its socket facing the right way, then have your child bite softly on a clean cloth to hold it in place. This is the single best way to keep the tooth alive.
- If you can’t reinsert it, use milk: Place the tooth in a small cup of cold milk. Milk’s chemistry keeps the root cells alive far longer than water does. Saline or your child’s saliva also work; plain water is a last resort.
- Get to a dentist within 30 minutes: Teeth reimplanted within 30 minutes have the highest survival rate. After an hour, the odds drop sharply. Call ahead so the office is ready for you.
What if my child knocks out a baby tooth?
Never reinsert a knocked-out baby tooth. Pushing a primary tooth back into its socket can damage the permanent tooth developing underneath it — a trade no parent wants to make. Instead, stay calm, control any bleeding with gentle pressure from clean gauze, and call your child’s dentist the same day. The dentist will check that no fragments remain in the gum and, if the tooth was lost too early, may recommend a space maintainer so the surrounding teeth don’t drift into the gap.
What if I’m not sure if it’s a baby tooth or a permanent tooth?
Baby teeth are smaller and whiter, but when in doubt, store the tooth in milk and let the dentist decide.
What should I do if my child chips or breaks a tooth?
It depends on how badly the break it is. If it’s only a chipped tooth, it still needs prompt attention. This is because a small chip can expose the inner layers of the tooth, and bacteria can take advantage of this opportunity.
Here is a checklist on what to do:
- Rinse the mouth: Rinse your kid’s mouth with warm water. This cleans the area.
- Save any fragments: If you can find the broken piece, keep it in milk or water. Dentists can sometimes bond the fragment back on.
- Apply a cold compress externally: Limit the swelling with a cold compress against the cheek or lips if necessary.
- See the dentist promptly: Sometimes you won’t see if there’s a crack or not. It’s better if the dentist can check it on the same or next day to catch if there’s any damage below the surface.
However, if you see that the chip exposes a pink or red spot at the center of the tooth, call the dentist immediately. That’s the nerve, and shouldn’t be exposed.
Dentist or emergency room?
If it is a dental injury, the dentist can do everything that an emergency room can. It’s probably better to see the dentist, unless you have a medical emergency like in some of these situations:
| Go to the DENTIST | Go to the EMERGENCY ROOM |
| Knocked-out or loose tooth | Possible jaw fracture or head injury |
| Chipped, cracked, or broken tooth | Loss of consciousness, vomiting, or confusion |
| Toothache or swelling limited to the mouth | Bleeding that doesn’t stop after 10 minutes of pressure |
| Tooth pushed out of position | Deep cuts to the face, lips, or tongue |
When both apply — say, a knocked-out tooth plus a hard hit to the head — the head injury wins. Go to the ER and bring the tooth in milk.
How can I prevent dental injuries in kids?
You can’t bubble-wrap a child, but you can stack the odds in their favor.
A custom-fitted mouthguard is the single most effective protection for kids who play contact sports — and for enthusiastic bikers, skaters, and trampoline lovers, too. Store-bought ‘boil and bite’ guards help; ones fitted by a dentist protect better and stay in place.
At home, keep walkways clear for new walkers and never use teeth as tools for opening packages.
FAQs
Here are some frequently asked questions about dental emergencies in kids.
How long can a knocked-out tooth survive outside the mouth?
The root cells begin dying within minutes in open air. Stored in cold milk, a tooth can remain viable for about an hour, sometimes a little longer. That’s why the goal is always the same: back in the socket or into milk immediately, and to the dentist within 30 minutes.
Can a chipped baby tooth be left untreated?
No — every chip deserves an exam. Even if it looks minor, a chip can hide a deeper crack or expose the tooth to infection, and sharp edges can cut your child’s tongue or cheek.
Most small chips are smoothed or bonded in a single quick visit.
Will a knocked-out permanent tooth reattach on its own?
If reinserted quickly, the tooth’s root can reattach to the socket over several weeks — but it needs a dentist to splint and monitor it. A reimplanted tooth often needs follow-up care later, but it can last for many years.
What if I can’t find the tooth?
Still see the dentist right away. The tooth may have been pushed up into the gum rather than knocked out, or it could have been swallowed or inhaled. An X-ray will show where it went and whether any fragments remain.
Keep calm and save your kids’ smile
Dental accidents can look dramatic: the mouth bleeds a lot. However, most injured teeth can be treated successfully when parents act quickly and calmly.
Remember the essentials:
- Crown, not root
- Milk, not water
- Dentist within 30 minutes
- Never reinsert a baby tooth
Save your dentist’s emergency number in your phone today, before you need it.
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