When a child knocks out a tooth, the minutes that follow are the most critical for their long-term oral health. By the way, there is no need to worry if you know what to do if your child knocks out a tooth. In this guide, we will walk you through the most important steps, ensuring you can act quickly and calmly to guarantee your child’s long-term, beautiful smile.
What to do if your child knocks out a tooth?
Based on clinical standards and emergency protocols, we have gathered what you exactly need to do to save your child’s smile.
Step 1: Determine if it is a Baby Tooth or a Permanent Tooth
The first thing our doctors will ask you over the phone is: “Is it a primary (baby) tooth or a permanent (adult) tooth?”
- Baby Teeth: If a baby tooth is knocked out, do not try to put it back in the socket. Reinserting a baby tooth can accidentally damage the permanent tooth bud developing underneath the gums.
- Permanent Teeth: This is a true dental emergency. According to the Colgate guide for dental emergencies, a permanent tooth has the highest chance of being saved if it is replanted within 30 to 60 minutes.

Step 2: Handle the Tooth with Care
If it is a permanent tooth, find it immediately. Only touch the crown (the white part you see in the mouth). Never touch the root, as this contains delicate periodontal ligament cells necessary for the tooth to reattach.
If the tooth is dirty, rinse it very gently under cold milk or a saline solution for no more than 10 seconds. Experts at HealthyChildren.org advise against using soap, scrubbing the tooth, or drying it with a cloth, as this kills the vital cells on the root.
Step 3: Immediate Reinsertion or Storage
The best place for a knocked-out adult tooth is back in its socket. If your child is calm and old enough not to swallow it, gently push the tooth back into the hole and have them bite down on a clean piece of gauze or cloth to hold it in place.
If you cannot reinsert it, you must keep the tooth moist. Do not use plain tap water for storage, as the chemicals in city water can damage the root. Instead, store the tooth in:
- A small container of cold milk.
- The child’s own saliva.
- A specialized tooth preservation kit (if available in your first aid kit).
Our Real-Life Case Study:
Last spring, a 10-year-old patient of ours knocked out his front incisor during a soccer match. His coach knew the protocol: he immediately placed the tooth in a carton of milk from the snack bar and called our office.
Because the tooth was kept moist and the patient arrived at our clinic within 40 minutes, we were able to successfully replant and splint the tooth. Today, that tooth is healthy and fully functional. Had the tooth been left to dry out in a tissue, the outcome would likely have required a lifelong dental implant.
Step 4: Manage Pain and Bleeding
While you are on your way to see us, address the physical trauma:
- Stop Bleeding: Apply firm, steady pressure to the area with a clean, damp cloth.
- Reduce Swelling: Use a cold compress on the outside of the cheek.
- Pain Relief: You can provide age-appropriate doses of ibuprofen or acetaminophen, but avoid aspirin if there is significant bleeding.

When to Seek Immediate Care
If your child shows signs of a concussion, such as fainting, vomiting, or blurred vision, it’s time to seek immediate care.
Why Toronto Parents Trust Our Clinic
At Elmwood Park Dental, we specialize in pediatric dental emergencies and provide the rapid, expert care required to replant and stabilize your child’s tooth. Our clinic prioritizes urgent cases to ensure your child receives immediate attention from our experienced doctors, helping to preserve their natural smile and prevent long-term complications.
Book a consultation today!
What to Expect At Our Clinic
When you arrive, our emergency dentist for kids will gently numb the area and ensure the socket is clear. We will then splint the tooth, which involves using a thin, flexible wire or composite material to bond the injured tooth to its healthy neighbors. This acts like a cast for the tooth, allowing the ligaments to heal over the next few weeks.
We also offer dental care for students, which is an excellent resource for parents looking for affordable, high-quality care.
Prevention Strategies for Families
While immediate action is vital during an emergency, our goal as dental professionals is to help your family avoid these high-stress situations altogether. Most dental trauma we see in our clinic could have been prevented or significantly minimized with a few proactive steps.
Here is how you can protect your child’s long-term oral health:
1. The Power of Custom-Fitted Mouthguards
If your child participates in contact sports such as football, basketball, hockey, or martial arts, a mouthguard is the single most important piece of equipment they can wear. Many dental traumas are entirely preventable with the right protective gear.
While boil-and-bite guards from sporting goods stores offer some protection, we recommend custom-fitted mouthguards created here at our clinic. These are:
- More comfortable: They don’t interfere with breathing or speaking.
- More secure: They stay in place even during high-impact collisions.
- More protective: They are designed specifically for your child’s unique dental structure, providing superior shock absorption for both the teeth and the jaw.

2. Safeguarding Your Home for Toddlers
For younger children, the most common dental injuries happen right at home. Toddlers who are just learning to walk or run are particularly prone to tripping and chipping. To reduce the risk:
- Use cushioned corner guards on low coffee tables, fireplace hearths, and sharp furniture edges.
- Install safety gates at the top and bottom of stairs.
- Ensure rugs have non-slip backing to prevent sudden slides on hardwood or tile floors.
3. Establish No-Conflict Habits
Many tooth fractures and avulsions (knock-outs) happen during non-sporting play. Encourage your children to follow these simple safety rules:
- No running with objects in the mouth: Items like toothbrushes, straws, or toys can cause severe internal damage if a child falls while holding them in their mouth.
- The “Feet on the Floor” Rule: Discourage jumping on couches or beds, as a fall onto a hard floor or the edge of a frame is a leading cause of lost front teeth.
- Use the Right Tools: Teach children never to use their teeth to open packaging, crack nuts, or bite down on ice, as these habits weaken the enamel and make teeth more prone to snapping upon impact.
4. Keep an Emergency Kit Ready
Preparation reduces panic. We suggest keeping a small dental emergency kit in your car or sports bag. This should include:
- Our clinic’s emergency phone number saved in your contacts.
- A small, sealed container.
- A bottle of saline solution.
- Clean gauze to control bleeding.
By taking these preventive measures, you aren’t just protecting a smile—you are saving your child from the physical pain and potential long-term restorative costs associated with dental trauma.
Conclusion
Accidents happen, but knowing how to react to a knocked out tooth can make the difference between a simple replantation and a lifelong dental gap. By following the steps outlined in this guide and acting within the critical 60-minute window, you are giving your child the best chance at a full recovery.
If your child has a dental emergency right now, call our office immediately. As previously noted, at Elmwood Park Dental, we prioritize emergency cases to ensure the best possible chance of saving your child’s natural teeth. By prioritizing emergency cases, we have established ourselves as a leading choice for same-day emergency dental treatment in Toronto.
FAQ
What is the golden hour for a knocked out tooth?
The golden hour is the first 60 minutes after a permanent tooth is knocked out. Replanting the tooth within this window significantly increases the chances of the root reattaching successfully.
Should I put a baby tooth back in the socket?
No. Never reinsert a baby tooth. Doing so can damage the permanent tooth developing underneath the gums. If a baby tooth is knocked out, contact your dentist to discuss if a space maintainer is needed.
Can I use tap water to clean or store the tooth?
You can use a very brief (10-second) rinse of cool tap water if the tooth is covered in dirt, but never store the tooth in water. The chlorine in tap water can kill the delicate root cells. Use cold milk or saliva instead.
What if I can’t find the knocked out tooth?
If the tooth cannot be found, your child still needs to see a dentist immediately. We will take an X-ray to ensure the tooth wasn’t pushed deep into the gum or swallowed, and we will discuss options like space maintainers or bridges.
Will a replanted tooth always survive?
While many replanted teeth heal perfectly, there is always a risk of the body rejecting the tooth or the root canal becoming infected later. Regular follow-ups at our clinic are essential to monitor the tooth’s health over time.
Have experience or questions about child knocking out tooth? Share your thoughts, concerns, or tips in the comments below. We’d love to hear from you!
