Knocked-Out Tooth? You Have About 60 Minutes — Here's What to Do

A knocked-out adult tooth can often be saved — but the clock starts the moment it leaves your mouth. The short version: pick the tooth up by the chewing surface (never the root), rinse it gently, try to place it back in its socket, and get to a dentist as fast as you can. Dentists generally talk about a window of roughly 30 to 60 minutes; the sooner the tooth is back where it belongs, the better its chances. Here's exactly what to do, step by step — and the one situation where you should not put the tooth back in.

Why the first hour matters so much

The root of your tooth is covered in a thin layer of living cells that anchor it to the jaw. Those cells are what make reattachment possible — and they don't survive long once the tooth dries out. Kept moist and handled carefully, they can stay viable long enough for a dentist to reposition the tooth and let your body do the rest. Left dry on a countertop or wrapped in a tissue, they die quickly, and the odds of saving the tooth drop with every passing minute. That's why everything below is really about two things: protect the root, and move fast.

What to do in the first 60 minutes

1. Find the tooth and pick it up by the crown

The crown is the white chewing part you normally see. Touch only that. Squeezing or scrubbing the root damages the very cells the tooth needs to reattach — even if it looks dirty, resist the urge to clean it thoroughly.

2. Rinse it gently — no scrubbing, no soap

If the tooth is dirty, hold it by the crown and rinse it briefly under cool water or milk. A few seconds is enough. No soap, no toothpaste, no wiping with cloth or tissue, and don't dry it off. You're rinsing away grit, not sterilizing it.

3. Try to place it back in the socket

This surprises people, but it's what dentists recommend: the socket is the best storage container there is. Facing the tooth the right way around, ease it back into place with gentle finger pressure, then bite softly on a clean piece of gauze or a handkerchief to hold it there. It shouldn't require force — if it won't seat easily, don't jam it. Move on to step four.

4. If it won't go back in, keep it moist — milk is best

Drop the tooth into a small container of cold milk. Milk's balance of sugars and proteins keeps the root cells alive far better than water does. No milk on hand? Options, from better to worse:

• Milk — the household gold standard.
• Saliva — tuck the tooth inside your cheek if you're an adult who won't swallow it, or spit into a small cup and submerge the tooth.
• Saline solution — contact-lens saline works in a pinch.
• Plain water — a last resort only. It's better than letting the tooth dry out, but it damages root cells over time.

5. Get to a dentist — fast

Call on the way, not after you arrive, so the team is ready for you. This is exactly what a dental emergency visit is for: the sooner the tooth is professionally repositioned and stabilized, the better its outlook. If the accident also involved a blow to the head, loss of consciousness, uncontrolled bleeding, or a suspected broken jaw, call 911 or go to the emergency room first — teeth matter, but you matter more.

Knocked-out baby tooth? Do NOT put it back

This is the big exception. Never reinsert a baby tooth. Pushing a primary tooth back into the socket can damage the permanent tooth developing underneath it — a trade nobody wants. Instead, stay calm for your child's sake, control any bleeding with gentle pressure from clean gauze, and call us. A dentist should still examine your child promptly to check for fragments in the gum, injury to neighboring teeth, and what the lost tooth means for the adult tooth coming in behind it.

What not to do (adult teeth)

• Don't touch or scrub the root — handle the crown only.
• Don't wrap the tooth in tissue or cloth — dry storage is the fastest way to lose it.
• Don't use soap, alcohol, or disinfectant on the tooth.
• Don't wait to "see how it feels" — this is one injury where hours genuinely change the outcome.

What happens at the dental office

If you managed to reinsert the tooth, the dentist will confirm its position, then usually splint it to the neighboring teeth so it stays still while the ligament heals — think of it as a cast for your tooth. If the tooth traveled in milk, it will be repositioned and splinted on the spot. Either way, the tooth is monitored over the following weeks and months; many replanted teeth eventually need root canal treatment to stay healthy, which your dentist will discuss with you.

And if the tooth can't be saved — because it was dry too long, broke below the gumline, or never turned up? You still have excellent options. A single tooth implant replaces the lost tooth with a fixed, natural-looking restoration that doesn't rely on the neighboring teeth for support. It's a routine part of what we do, and losing the original tooth is not the end of your smile.

The best treatment is a mouthguard

Most knocked-out teeth we see come from sports, bikes, and falls — and a properly fitted mouthguard prevents a large share of them. If you or your kids play basketball, football, soccer, hockey, or anything else where elbows and pavement are part of the game, a mouthguard is the cheapest dental insurance there is. Store-bought boil-and-bite guards help; a custom-fitted guard from your dentist is more comfortable, which means it actually gets worn. Ask about one at your next visit.

It's also worth knowing the basics for other injuries before they happen — our guide to dental emergency first aid covers broken teeth, bitten lips, bleeding, and swelling in one place.

Frequently asked questions