What To Do If Your Tooth Gets Knocked Out

A knocked-out tooth — called an avulsed tooth in dental terms — is one of the most time-critical dental emergencies there is. Unlike most dental problems that can wait a day or two for an appointment, a knocked-out tooth has a very narrow window for successful treatment. In the right circumstances, with the right steps taken quickly, a tooth that has been completely dislodged from its socket can be reimplanted and saved.

The most important thing to understand: you have roughly 30 to 60 minutes from the time the tooth comes out to get it back into the socket and stabilized by a dentist. After that, the cells on the root surface begin to die, and reimplantation becomes less likely to succeed. Every minute matters.

This guide walks through exactly what to do — and what not to do — if you or someone near you loses a tooth from a sports injury, fall, accident, or any other trauma. If you are in Rego Park, Forest Hills, Jackson Heights, Elmhurst, or the surrounding Queens area, Affordable Dental Care PC’s emergency dental team is available to help.

Step-by-Step: What To Do When a Tooth Gets Knocked Out

Step 1: Stay calm and find the tooth

Locate the tooth as quickly as possible. Pick it up by the crown — the white portion that is normally visible above the gumline — not by the root. The root contains delicate cells called periodontal ligament fibers that are critical to successful reimplantation. Touching the root, squeezing it, or scrubbing it damages these cells and dramatically reduces the chance of saving the tooth.

Step 2: Rinse gently if the tooth is dirty

If the tooth is visibly dirty, hold it under a gentle stream of clean water for no more than 10 seconds. Do not scrub it, do not use soap, and do not wrap it in tissue or cloth. Pat nothing on it. A quick rinse is all that is needed.

Step 3: Try to reinsert the tooth into the socket

If the patient is an adult and is alert enough to cooperate, try to gently reinsert the tooth into the empty socket. Position it in the correct orientation and push it slowly into place. Bite down gently on a folded piece of gauze or a clean cloth to hold it there while you get to a dentist.

Important exceptions: Do not attempt to reinsert a baby tooth. Baby teeth that are knocked out should not be reimplanted because forcing a primary tooth back into the socket can damage the permanent tooth developing underneath. If a child’s tooth comes out, keep it for your dentist to inspect and call the office.

Step 4: If you cannot reinsert the tooth, keep it moist

The root cells must stay alive. The best way to store the tooth if you cannot reinsert it is in cold milk. Milk has the right pH and mineral balance to keep root surface cells viable longer than most alternatives. If milk is not immediately available:

• Place the tooth inside the patient’s mouth, between the cheek and gum (for adults who are calm and not at risk of swallowing it)
• Use saline solution if available
• Use a commercial tooth preservation kit such as Save-A-Tooth if one is in your first aid kit

Do not store the tooth in tap water. Plain water can cause the root cells to swell and rupture through a process called osmotic shock, making the tooth much less likely to be successfully reimplanted.

Step 5: Control bleeding at the socket

The empty socket will bleed. Apply gentle pressure with a clean piece of gauze or a folded cloth. Have the patient bite down on it. Do not pack the socket with anything. The goal is simply to slow the bleeding while you get to the dentist.

Step 6: Get to an emergency dentist immediately

Call your dentist on the way. In Rego Park and Queens, call (718) 897-3434 to reach Affordable Dental Care PC. Let them know you are coming in with a knocked-out tooth so they can prepare. Every minute of travel time counts.

Do not go to a hospital emergency room first unless there is also a serious head injury or the patient is unconscious. Hospital ERs can treat wounds and pain but cannot reimplant a tooth — only a dentist can do that.

What NOT To Do With a Knocked-Out Tooth

Several well-meaning but incorrect actions can end any chance of saving the tooth. Avoid all of the following:

• Do not scrub or disinfect the root. Rubbing the root surface or applying alcohol destroys the periodontal ligament cells needed for reimplantation.
• Do not wrap the tooth in tissue or cloth. These materials dry out the tooth and can tear the delicate root surface cells.
• Do not store the tooth in tap water. As noted above, osmotic shock from plain water can kill root cells quickly.
• Do not put the tooth in ice. Freezing temperatures also damage root surface cells.
• Do not delay getting to a dentist. The 30–60 minute window is not a guideline — it is a hard biological limit for the cells on the root surface.

What Happens at the Emergency Dentist

When you arrive, the dentist will evaluate the tooth, the empty socket, and the surrounding teeth and bone. If the tooth is viable and the socket is intact, the tooth will be cleaned and reimplanted into the socket. A flexible splint is bonded to the reimplanted tooth and the neighboring teeth to hold it in place during healing. This splint typically stays in place for 1 to 2 weeks.

The dentist may also prescribe antibiotics to prevent infection, and may recommend a tetanus shot if the injury occurred outdoors. Follow-up appointments are essential to monitor healing and to check whether root canal treatment is needed. Reimplanted teeth often require a root canal within a few weeks of the injury because the nerve and pulp are disrupted during the trauma.

If the Tooth Cannot Be Saved: Replacement Options

Not every knocked-out tooth can be successfully reimplanted. If too much time has passed, if the root was damaged, or if the socket is too damaged to receive the tooth, the dentist will discuss replacement options. In most cases, dental implants are the best long-term solution for replacing a missing adult tooth.

A dental implant replaces both the missing root and the visible tooth. A titanium post is surgically placed into the jawbone where the original root was, and after the bone heals and fuses with the post (a process called osseointegration), a custom dental crown is attached on top. The result looks, feels, and functions like a natural tooth — and critically, the implant stimulates the jawbone to prevent the bone loss that occurs when a tooth root is missing.

During your emergency visit, the dentist will discuss what was affected and what options make sense for your situation. The socket needs time to heal before an implant can be placed, so the process is not immediate — but it is worth planning for.

Affordable Dental Care PC also accepts no-fault insurance for injuries from auto accidents and workers’ compensation for workplace injuries, which may cover both the emergency visit and any restorative work that follows.

Preventing Knocked-Out Teeth

The most common causes of avulsed teeth in adults and children are sports injuries, falls, and vehicle accidents. A properly fitted custom mouth guard is the most effective protection available for contact and collision sports. Unlike store-bought boil-and-bite guards, a custom-fitted mouth guard made at a dental office provides significantly better fit, protection, and comfort — making athletes more likely to actually wear it consistently.

If you or your child plays sports without a mouth guard, ask about getting one fitted at your next appointment at Affordable Dental Care PC. We serve patients throughout Queens, including families in Forest Hills, Jackson Heights, Elmhurst, and Kew Gardens.

Frequently Asked Questions About Knocked-Out Teeth