Dental Emergencies — What to Do & When to Go Immediately

Dental emergencies happen when you're least prepared for them. Knowing what to do in the first minutes and hours after an injury or sudden dental problem can mean the difference between saving a tooth and losing it permanently. This guide covers the most common dental emergencies and gives you clear, actionable steps for each.

Knocked-out permanent tooth

This is a true dental emergency. Time is the critical factor — a knocked-out tooth reimplanted within 30 minutes has the best chance of surviving. After an hour, survival rates drop significantly.

1. Pick up the tooth by the crown — never handle the root. The periodontal ligament cells on the root surface are what allow the tooth to reattach, and they die quickly if damaged or dried out.
2. If the tooth is dirty, rinse it gently with water for no more than 10 seconds. Do not scrub, use soap, or wrap it in tissue.
3. Try to reinsert it — if possible, gently push the tooth back into the socket and hold it in place by biting gently on a cloth. This is the best possible storage for the tooth.
4. If you can't reinsert it, store it in milk, the patient's own saliva (in the cheek), or a tooth preservation kit. Do not store in water.
5. Get to a dentist immediately — call ahead so they're ready when you arrive.

Cracked or fractured tooth

How urgent this is depends on the severity. A small chip on the edge of a front tooth is not an emergency. A crack that causes sharp pain when biting or a tooth broken into visible pieces needs same-day dental attention.

• Rinse your mouth with warm water
• Apply a cold pack to your cheek to reduce swelling if present
• If a piece has broken off, save it and bring it to the dentist
• Take over-the-counter pain medication as directed
• Avoid chewing on that side until seen by a dentist

Severe toothache

A toothache that is severe, throbbing, or keeping you awake at night is not something to wait out. It almost always indicates infection or significant decay that needs professional treatment.

• Take over-the-counter pain medication — ibuprofen is more effective than acetaminophen for dental pain because it reduces inflammation
• Apply a cold pack to your cheek — do not apply heat, which can worsen infection
• Do not place aspirin directly on the tooth or gum — this causes chemical burns
• Call your dentist the same day — a severe toothache should not be left until next week

Dental abscess

An abscess is a pocket of infection — either at the root tip (periapical abscess) or in the gum tissue (periodontal abscess). Signs include a visible pimple-like bump on the gum, swelling of the face or jaw, severe throbbing pain, fever, and a bad taste in the mouth from draining pus.

An abscess will not resolve on its own. It requires professional treatment — typically drainage and antibiotics, followed by the definitive treatment of the underlying cause (root canal, extraction, or periodontal debridement). If swelling is spreading toward the neck or floor of the mouth, go to the emergency room.

Lost filling or crown

This is not an immediate emergency but should be addressed within a day or two. An exposed tooth cavity or prepared tooth is sensitive and vulnerable to further damage.

• If a crown has come off, you can temporarily re-cement it with dental cement from a pharmacy (not super glue) until you can see a dentist
• Avoid chewing on that side
• Keep the area clean but be gentle
• Call your dentist as soon as possible — most offices fit emergency appointments for lost restorations

Soft tissue injuries — lips, cheeks, tongue

Cuts or lacerations to the lips, cheeks, or tongue bleed significantly because of the rich blood supply to these tissues. Most stop with direct pressure.

• Clean the area gently with water
• Apply firm, direct pressure with gauze or a clean cloth for 10 to 15 minutes without interruption
• Apply a cold pack to reduce swelling
• If bleeding doesn't slow after 15 to 20 minutes of firm pressure, go to an urgent care or emergency room
• Deep lacerations may require sutures

Preventing dental emergencies

• Wear a mouthguard during contact sports — most dental trauma is preventable
• Don't use your teeth as tools to open bottles, packages, or bags
• Don't chew ice, hard candy, or pen caps
• Maintain regular dental checkups — problems caught early are less likely to become emergencies
• Have your dentist's after-hours number saved in your phone