What Should You Do Right After a Tooth Gets Knocked Out?
Speed is everything when a tooth gets knocked out. The cells on the root surface start dying within minutes of being outside the mouth, and your best window for successful reimplantation is the first 30 minutes.
Here is exactly what to do:
1. Find the tooth. Pick it up by the crown (the white chewing surface), never by the root. The root has delicate cells called periodontal ligament cells that are essential for reattachment.
2. If the tooth is dirty, rinse it briefly under clean running water. Do not scrub it, do not use soap, and do not wrap it in tissue or let it dry out.
3. Try to place the tooth back in its socket. Gently push it in with your fingers and hold it in place by biting down on a clean cloth. This is the single best thing you can do.
4. If you cannot reinsert it, put the tooth in a cup of cold milk, or tuck it between your cheek and gum. Milk has the right balance of pH, nutrients, and osmolality to keep the root cells alive.
5. Call (240) 387-8233 and tell us you have a knocked-out tooth. We will see you right away.
Do not put the tooth in plain water. The cells on the root cannot survive in tap water for more than a few minutes. Milk or saliva are far better transport mediums.
How Do We Reimplant a Knocked-Out Tooth?
When you arrive at our clinic, we assess the tooth and the socket. If the tooth has been properly stored and less than an hour has passed, reimplantation has a good success rate.
We clean the socket, position the tooth carefully, and splint it to the neighbouring teeth with a flexible wire or composite material. The splint stays in place for one to two weeks while the periodontal ligament reattaches.
You will likely need a root canal within the first two weeks after reimplantation. The nerve inside a knocked-out tooth almost always dies, and root canal treatment prevents infection from developing inside the tooth.
We schedule follow-up visits at two weeks, one month, three months, and six months to monitor healing and check for complications like root resorption.
What If the Tooth Cannot Be Saved?
Sometimes a knocked-out tooth cannot be reimplanted, either because too much time has passed, the root is fractured, or the socket is too damaged. In these cases, we discuss replacement options:
Dental implant: A titanium post is placed in the jawbone and topped with a crown that looks and functions like a natural tooth. This is generally considered the best long-term replacement. We can place a temporary tooth the same day to fill the gap while the implant heals.
Dental bridge: A prosthetic tooth is anchored to the teeth on either side. This works well when the neighbouring teeth already need crowns.
Partial denture: A removable option that is less invasive and less expensive, though not as stable as an implant or bridge.
We help you understand the pros, cons, and costs of each option so you can make the right decision for your situation.
What Causes Teeth to Get Knocked Out?
Sports injuries are the leading cause, especially in contact sports like basketball, football, soccer, and hockey. We see a lot of these at our Rockville clinic, particularly from students at local schools and weekend athletes at Montgomery County recreation centres.
Falls are the second most common cause, particularly in children learning to walk or ride bikes, and in older adults. Car accidents, playground incidents, and accidental impacts during everyday activities round out the list.
If you or your child plays contact sports, a custom mouthguard can reduce the risk of a knocked-out tooth by up to 80 percent. We can make one at our clinic. It fits better and protects more effectively than a store-bought boil-and-bite guard.
Why Speed Matters: The 30-Minute Window
Research published in dental trauma journals consistently shows that teeth reimplanted within 30 minutes have the highest survival rates, often above 90 percent. After 60 minutes, the success rate drops significantly.
The reason is the periodontal ligament. These cells coat the root surface and are what allow the tooth to reattach to the bone. They begin dying as soon as the tooth leaves the mouth, and once they are gone, they do not regenerate.
This is why we keep our schedule open for emergencies. When you call (240) 387-8233 and tell us you have a knocked-out tooth, we clear time to see you immediately. Every minute counts.
Emergency Dentist of Rockville serves the entire Montgomery County area, including Bethesda, Gaithersburg, Silver Spring, and Potomac. Our clinic at 12034 Chase Crossing Circle in North Bethesda is centrally located and easy to reach quickly.
