Dental Emergencies in Kids: Knocked-Out Teeth, What to Save and When to Get Emergency Dental Care

Quick answer: A knocked-out permanent tooth is a dental emergency. The American Academy of Pediatrics’ HealthyChildren.org first-aid page says a permanent tooth has the best chance of being saved when it is placed back in the socket within 15 minutes, and that you may still be able to save it within the first hour if you act quickly. Pick the tooth up by the crown (the chewing part), not the root. Rinse it gently with milk or saline if needed; do not use tap water, and do not scrub. If you feel comfortable, put the tooth back in the socket and have the child bite gently on gauze or cloth to hold it. If you cannot replace it, keep the tooth moist in milk, saline or a balanced salt solution made for avulsed teeth, or in the child’s saliva. Do not store it in tap water. Then go immediately to a dentist or an emergency room, and call ahead if you can. Do not try to put a baby tooth back in. If a baby tooth comes out earlier than expected, HealthyChildren says that in most cases you should not try to replace it.

A fall from a bike, a playground slip or a sports collision can send a tooth into the grass before anyone has time to think. This guide is part of our family health and safety guide. Everyday cleaning and checkups belong in kids’ dental care by age; this page is about the minutes after an injury.

Sources: HealthyChildren.org, “First Aid for a Knocked-Out Permanent Tooth,” by Stuart Bradin, DO, FAAP, FACEP, last updated October 7, 2026, including the 15-minute and first-hour timing, handle-by-the-crown rule, milk or saline rinse (no tap water, no scrubbing), reinsertion and gauze, moist storage in milk, saline or balanced salt solution or the child’s saliva, no tap-water storage, immediate dental or emergency-room care, and the instruction not to replant a baby tooth. For other mouth injuries not covered in detail here, follow a dentist or emergency clinician. This is general safety and first-aid information, not medical, legal or professional advice. Recommendations and product standards can change. Follow current official guidance and your child’s dentist or clinician in an emergency.

First, Decide Whether It Is a Baby Tooth or a Permanent Tooth

The first-aid steps are not the same. HealthyChildren is clear: if a baby tooth comes out earlier than expected, there is no need to try to replace it, and in most cases no treatment is needed for replanting because the adult tooth will come in later. Trying to force a baby tooth back in can damage the developing permanent tooth underneath.

If you are not sure which tooth it is, look at the child’s age and which tooth is missing, and call a dentist or an emergency department immediately while you keep any tooth moist using the permanent-tooth rules below. It is better to get help quickly than to guess wrong at the curb.

A permanent front tooth coming out is the classic emergency this page describes. Other dental emergencies, such as a tooth that is pushed up, loosened, chipped with nerve pain, or a jaw injury, also need prompt dental or emergency care even if the tooth is still in the mouth. This article does not try to cover every type of facial trauma. If there is a head injury, breathing trouble, or a suspected jaw fracture, call 911 first.

The Minutes That Matter for a Permanent Tooth

HealthyChildren says permanent teeth have the best chance of being saved when placed back in the socket within 15 minutes, and that you may still be able to save the tooth within the first hour if you act quickly and carefully. That clock starts at the injury, not at the front desk.

Find the tooth. Pick it up by the crown, the white part used for chewing, not by the root, the end that sat in the gum. Touching the root can damage cells needed for reattachment.

If the tooth is dirty, rinse it gently with milk or saline. Do not use tap water, and do not scrub, wipe with a tissue, or wrap it in a dry paper towel.

If you feel comfortable doing so, put the tooth back into the socket, facing the right way, and have the child bite down gently on gauze or a clean cloth to hold it. Then go.

If you cannot get it back in, keep it moist. HealthyChildren lists milk, saline or a balanced salt solution made for knocked-out teeth, or the child’s own saliva. Do not drop it into a cup of tap water. A small container with enough liquid to cover the tooth is enough. The child’s saliva can mean the tooth rests in the side of the mouth only if that is safe and the child will not swallow it; a container of spit is often easier to control. Then go to the dentist or the nearest emergency room, and call ahead so they know a knocked-out permanent tooth is coming.

Bring the tooth even if it looks rough. Do not delay the trip to search for a perfect container in a sports bag. Milk from a nearby store or a lunch box is a common, official option.

After the First Aid, at the Office or ER

Time still matters in the waiting room. Tell the staff immediately that a permanent tooth was knocked out and whether it has been reinserted. Do not snack on the way. If the tooth is in the socket, keep the child from poking it.

Pain control should follow your clinician’s advice. This page does not recommend a specific over-the-counter dose. Ask the dentist or emergency clinician what is appropriate for the child’s age and weight.

A tetanus update may be discussed if the wound was dirty; that is a clinician’s decision. Mouth injuries can bleed a lot. Persistent bleeding, a very loose jaw, knocked-out teeth plus a loss of consciousness, or a bite that does not close normally are reasons not to drive to a closed dental office if emergency services are the faster path.

Ask the dentist about a mouthguard before the child returns to contact sports or to the playground habit that caused the injury. Prevention after the fact is still worth it for the other teeth.

Keep a dentist’s emergency number in your phone and in your first aid kit sheet, along with Poison Control and the pediatrician’s after-hours line.

Preventing the Next Injury

Supervise young children on play equipment they have not mastered. Teach bike riders to keep both hands ready to break a fall, and to use a helmet; a helmet does not protect teeth, but it reduces other injuries in the same fall. See related play-safety guides such as playground safety when the injury happened on a structure.

For sports, ask the dentist about a properly fitted mouthguard. A boil-and-bite guard that actually fits is more useful than a guard that stays in a bag.

At home, watch for coffee tables at tooth height, slippery socks, and hard floors near a toddler who is running with a toy in the mouth. Do not let a child walk around with a toothbrush or a hard snack stick in their mouth.

If a chip is small and there is no pain, call the dentist the same day anyway. What looks minor can still involve the nerve or a hidden crack.

Sports, School and the Bag You Should Already Have

If the injury happens at practice, a playground or a school carnival, the same clock applies. Tell the adult in charge that a tooth came out and whether it is likely a permanent tooth. Someone should start the HealthyChildren steps while another person calls a parent and a dentist. A tooth left dry on a bench is losing time.

It helps to put a small, closed container in a sports bag or a first aid kit now, before you need it, along with the dentist’s emergency number. You still may use milk from a nearby refrigerator. The point is not a perfect kit. The point is not to store the tooth in a dry napkin.

Schools and coaches vary in how they handle dental injuries. Share the first-aid points with a babysitter and a coach in ordinary language: crown only, no scrubbing, milk or saliva, go now, do not replant a baby tooth. Our babysitter safety checklist can include the dentist’s number next to the pediatrician.

If blood is pooling or the child cannot breathe or stay awake, that is a 911 problem first, and a tooth problem second. Hold the child still, keep the airway clear, and let dispatch guide you. A knocked-out tooth with a possible neck or head injury is not a reason to jostle the child in order to search the grass.

After the tooth is managed, ask the dentist about follow-up X-rays, a splint, and what to eat for a few days. Soft food and gentle brushing around the area are common, but those details should come from the clinician who treated the child, not from a general article.

If the tooth cannot be saved, the dentist will talk about space maintenance or later replacement for a permanent tooth. That conversation can wait until the emergency visit is underway. Your job in the first hour is the steps above.

If you find the tooth after a delay, still keep it moist in milk, saline or saliva and go in. Tell the dentist how long the tooth was dry. Do not scrub it to ‘clean it up’ first, and do not let the lack of a perfect first 15 minutes keep you from seeking care in that first hour.

Write the emergency dentist number on the same fridge sheet you already use for Poison Control and the pediatrician, and tell caregivers where that sheet lives. A knocked-out tooth is easier to manage when nobody is searching for a phone number while holding a cup of milk.

A labeled contact in your phone, under a clear name, is a good backup.

Frequently Asked Questions

Should I put a baby tooth back in?

No. HealthyChildren says not to try to replace a baby tooth that comes out early. Call a dentist if you are unsure which tooth it is or if there is a lot of pain or bleeding.

How soon does a permanent tooth need to go back in?

HealthyChildren says the best chance is within 15 minutes, and that you may still be able to save it within the first hour if you act quickly. Go to a dentist or emergency room right away.

Can I rinse the tooth with tap water?

No. The AAP page says to rinse gently with milk or saline, not tap water, and not to scrub.

What if I cannot put the tooth back in the socket?

Keep it moist in milk, saline, a balanced salt solution made for avulsed teeth, or the child’s saliva, and get emergency dental care immediately. Do not store the tooth in tap water.

Where should I go if our dentist is closed?

HealthyChildren says to go to your child’s dentist or the nearest emergency room, and to let them know you are coming.

Does this advice apply to a tooth that is only loose or chipped?

Those injuries can still need prompt dental care, but the reinsertion steps on this page are for a tooth that has come all the way out. Call a dentist or emergency clinician and describe what you see.