Most dental emergencies fall into a handful of categories, and knowing the right steps in the first few minutes can be the difference between saving a tooth and losing it permanently. Whether you’re dealing with a knocked-out tooth, a cracked molar, a lost crown, or sudden swelling, here’s what to do and how quickly you need to act.
Knocked-Out Permanent Tooth
A knocked-out adult tooth is the most time-sensitive dental emergency. Replanting the tooth within five minutes gives the best chance of the root’s living cells returning to normal function. After 15 minutes of sitting dry, the critical cells on the root surface can no longer recover. After 30 minutes dry, virtually all of them die.
If you can, pick the tooth up by the white crown only. Never touch the root. Gently rinse it with milk or saline if it’s dirty, but don’t scrub it or use tap water. Then try to push it back into the socket yourself, biting down gently on a clean cloth to hold it in place. If you can’t reinsert it, you need to keep it wet. Cold whole milk is the best readily available storage medium and keeps root cells viable for up to an hour. Saliva (spitting into a cup and dropping the tooth in) is a distant second, causing roughly twice as much cell damage as milk in the same timeframe. Tap water is one of the worst options, nearly as damaging as letting the tooth air-dry.
Get to a dentist or emergency room as fast as possible. Replantation within the first hour, combined with proper storage, produces successful healing in up to 85% of mature teeth.
Baby Teeth Are Different
If a child knocks out a baby tooth, do not try to put it back in. Replanting a primary tooth risks damaging the permanent tooth developing underneath it. A replanted baby tooth can fuse to the bone, disrupting the growth of the jaw and the path of the adult tooth trying to come in. Control any bleeding with gentle pressure from a damp gauze pad and contact your child’s dentist for follow-up.
Chipped, Cracked, or Broken Teeth
Not every chip needs same-day treatment, but some fractures are genuine emergencies. The key question is how deep the break goes.
A small chip that only affects the outer enamel layer is usually painless and can wait a few days for a dental appointment. You might notice a rough edge catching on your tongue, but there’s no sensitivity to hot or cold.
A deeper fracture that reaches the inner layer of the tooth (dentin) will look yellow or dark at the break line. You’ll likely feel some sensitivity to air and temperature, but the tooth won’t throb on its own. This warrants a dental visit within a day or two.
A fracture that exposes the nerve (pulp) is the one that needs urgent care, ideally the same day. You’ll know because the pain is sharp and reactive to air, temperature, and pressure. You may see a pink or red dot at the center of the broken surface. The nerve exposure needs to be sealed before the tooth structure can be rebuilt, so don’t wait on this one.
If a piece of tooth breaks off cleanly, save the fragment in milk or a damp cloth. A dentist can sometimes bond it back in place. In the meantime, rinse your mouth with warm salt water and apply a cold compress to the outside of your cheek to manage swelling.
Lost Filling or Crown
A crown that falls off isn’t a crisis, but the exposed tooth underneath is vulnerable to sensitivity, further breakage, and decay. Your goal is to protect that tooth stub until you can get back to the dentist, typically within a few days.
Start by gently cleaning the inside of the crown with a toothbrush and toothpaste. You can temporarily reattach it using over-the-counter dental cement, which is available at most pharmacies. In a pinch, a small dab of toothpaste or sugar-free gum inside the crown can hold it in place temporarily. Do not use superglue or any household adhesive.
While the crown is off or loosely seated, avoid sticky, hard, or chewy foods. Try to chew on the opposite side of your mouth. If you’ve lost a filling rather than a crown, the same temporary dental cement can fill the cavity as a short-term fix. Sugar-free gum pressed into the hole also works as a barrier, though it won’t last long.
Severe Toothache
For intense dental pain, the most effective over-the-counter approach is combining ibuprofen and acetaminophen. Taken together on a rotating schedule (every six hours), they target pain through two different mechanisms and outperform either drug alone. A clinical trial on patients after wisdom tooth removal found this combination provided significantly better pain control than either medication by itself. Take both at their standard doses (typically 400 mg ibuprofen and 500 mg acetaminophen) unless you have a reason to avoid either one, such as stomach issues with ibuprofen or liver concerns with acetaminophen.
Rinsing with warm salt water (half a teaspoon of salt in eight ounces of water) can help reduce inflammation around the painful area. Applying a cold compress to the outside of your cheek in 20-minute intervals helps with swelling. Avoid placing aspirin directly against the gum tissue, a common home remedy that actually burns the soft tissue and makes things worse.
Dental Abscess and Signs of Spreading Infection
A dental abscess often starts as a persistent, throbbing toothache that worsens over hours. You might notice a swollen bump on the gum near the painful tooth, a foul taste in your mouth, or facial swelling on one side. Most abscesses need a dentist within 24 hours for drainage and antibiotics.
Some infections, however, move beyond the tooth into the surrounding tissues and become life-threatening. The most dangerous progression is when swelling spreads to the floor of the mouth and the neck, a condition that can block your airway. Go to the emergency room immediately if you notice any of these warning signs: difficulty breathing, difficulty swallowing, drooling because you can’t swallow your own saliva, swelling under your tongue or jaw that’s spreading to your neck, your tongue pushing forward out of your mouth, speech that sounds muffled (as if you have a hot potato in your mouth), fever combined with confusion or extreme fatigue. These symptoms can escalate within hours.
Dry Socket After a Tooth Extraction
After a tooth is pulled, a blood clot forms in the empty socket to protect the bone and nerves underneath. Dry socket happens when that clot fails to form, gets dislodged, or dissolves too early. The result is exposed bone and nerve endings, which cause intense, radiating pain along the side of the face. Symptoms typically start one to three days after the extraction.
If you suspect dry socket, contact the dentist who performed the extraction. They’ll pack the socket with a medicated dressing to protect the exposed area and manage pain. In the meantime, gentle salt water rinses and the ibuprofen-acetaminophen combination described above can help. To lower your risk of dry socket in the first place, avoid using straws, smoking, or spitting forcefully for at least 72 hours after an extraction. The suction can pull the clot right out.
Broken Braces Wire or Loose Bracket
A poking orthodontic wire is painful but rarely a true emergency. If a wire is jabbing into your cheek or gum, try using clean tweezers to bend the end of the wire back toward your teeth and away from the soft tissue. If you can’t reposition it, press a small ball of orthodontic wax (included in most braces starter kits) over the sharp end to create a barrier. A loose bracket that’s still attached to the wire can be slid with tweezers to sit centered on a tooth, facing the right direction so its edges don’t cut the inside of your mouth.
If you don’t have orthodontic wax on hand, a small piece of sugar-free gum or even a cotton ball can serve as a temporary cushion. Call your orthodontist’s office the next business day to schedule a repair. The only time a broken wire or bracket warrants urgent care is if you’ve accidentally swallowed or inhaled a piece of hardware, or if the wire is embedded in your gum tissue and you can’t safely remove it.