Dental Emergency & Tooth Pain Tools

Is it a dental emergency?

Most dental problems are not emergencies: they need a dentist within a day or a few days, not an ambulance. A few signs mean you should call 911 or go to the ER now. These come from NHS, American Dental Association (ADA) and UK dental (SDCEP) guidance:

Swelling that makes it hard to breathe, swallow or speak
Swelling spreading to the eye or neck
Bleeding that won't stop after 20 minutes of firm pressure
A serious face or jaw injury, or a jaw that won't open or close
Fever or feeling very unwell with dental swelling

For everything else, the Dental Emergency Checker asks a few quick questions and sorts your problem into one of four levels: emergency, see a dentist today, within a few days, or home care. It also gives you steps to take now and a summary to read out to the dentist.

Wondering why a tooth hurts? The Toothache Cause Finder looks at what sets the pain off and how long it lasts, then lists the causes your pattern is commonly linked with, such as sensitive teeth, an inflamed nerve or a cracked tooth, and how a dentist checks each one.

Key facts at a glance

Situation	The number to know	Source
Knocked-out adult tooth	Best chance if it's back in place within about 15 minutes. Keep it in milk if not	IADT 2020
Knocked-out baby tooth	Never put it back. See a dentist the same day	NHS, IADT, SDCEP
Bleeding	Firm pressure on damp gauze for 20 minutes	SDCEP
Toothache	See a dentist if it lasts more than 2 days or painkillers don't help	NHS
Numbness after a dental injection	Lip feeling usually back in 2 to 3 hours	Oxford Health NHS
Dental anxiety	11.6% of UK adults score in the high range	Humphris 2009

Common questions in this area

Should I go to the ER for a toothache? Only if you have one of the warning signs above. For toothache alone, a dentist is usually the right place. If painkillers don't control the pain, or you have swelling, a bad taste or a high temperature, see a dentist within 24 hours. Check your symptoms.

What do I do if a tooth gets knocked out? First, work out whether it's a baby tooth or an adult tooth: the advice is opposite. An adult tooth should go back in its socket as soon as possible, or into milk on the way to a dentist. The Knocked-Out Tooth Rescue has a timer and step-by-step cards that work offline once the page has loaded.

What can I take for tooth pain? The ADA's 2024 guideline recommends an anti-inflammatory such as ibuprofen or naproxen first, alone or with acetaminophen (paracetamol). Follow the label and ask a pharmacist if you have health problems. Never put aspirin on the gum.

How long will I be numb after the dentist? Usually 2 to 3 hours for the lip and cheek, longer after a lower-jaw nerve block or a long-acting anesthetic. The Dental Numbness Calculator turns your injection time into a range of clock times with a countdown.

I'm scared of the dentist. Is that normal? Very. The 5-question Dental Anxiety Test uses the Modified Dental Anxiety Scale to give you a score and a printable plan to show your dentist. Talking therapy and sedation can both help.

How we build these tools

Every number on these pages comes from the sources listed below and on each tool page: FDA drug labels, ADA and NHS guidance, the International Association of Dental Traumatology, and published research. UK guidance from the Scottish Dental Clinical Effectiveness Programme (SDCEP) is paraphrased, not copied. The tools run in your browser, and your answers stay on your device. They're for education and planning and don't replace a dentist or doctor.

Frequently asked questions

What counts as a dental emergency?

The ADA defines a dental emergency as something potentially life-threatening: bleeding that won't stop, a spreading infection with swelling that could affect breathing, or an injury to the face bones that could affect the airway. Severe toothache, an abscess and a broken tooth that hurts are urgent: they need a dentist quickly, usually within 24 hours. A knocked-out adult tooth can't wait: get it back in place or into milk and see a dentist right away, within the hour if you can (NHS).

What should I take to an emergency dental visit?

Take any tooth or broken pieces (a knocked-out tooth travels best in milk), a list of your medicines, and a short summary of what happened and when it started. The Dental Emergency Checker writes one you can copy.

Do these tools replace a dentist?

No. They're for education and planning, based on published guidance. They can't examine you or see an X-ray. If you're worried, call a dentist or doctor, and call 911 for any emergency warning sign.

Is it normal for pain to get worse a few days after an extraction?

Not usually. Pain that gets worse instead of better, usually starting 2–3 days after the tooth came out, is commonly linked with dry socket (Cochrane). SDCEP guidance says pain after a recent extraction should be seen within 24 hours, so call the dentist who took the tooth out. The Dry Socket Checker compares your symptoms with normal healing.

Sources

American Dental Association. What Constitutes a Dental Emergency?. updated March 30, 2021. Accessed October 26, 2026.
NHS. Toothache. reviewed July 1, 2024. Accessed October 26, 2026.
NHS. Dental abscess. reviewed March 18, 2026. Accessed October 26, 2026.
NHS. How to find an emergency or urgent NHS dentist appointment. reviewed May 14, 2025. Accessed October 26, 2026.
Scottish Dental Clinical Effectiveness Programme (SDCEP). Management of Acute Dental Problems: Quick Reference Guide for healthcare professionals. 2013. Paraphrased; flowcharts not reproduced. Accessed October 26, 2026.
American Dental Association (MouthHealthy). Dental Emergency - What if I break a Tooth. Accessed October 26, 2026.
Fouad AF, Abbott PV, Tsilingaridis G, et al. Dental Traumatology 2020;36(4):331-342. International Association of Dental Traumatology guidelines for the management of traumatic dental injuries: 2. Avulsion of permanent teeth. 2020. Accessed October 26, 2026.
NHS. Knocked-out tooth. reviewed February 6, 2025. Accessed October 26, 2026.
Carrasco-Labra A, et al. Journal of the American Dental Association 2024;155(2):102-117. Evidence-based clinical practice guideline for the pharmacologic management of acute dental pain in adolescents, adults, and older adults. 2024. Accessed October 26, 2026.
Oxford Health NHS Foundation Trust. Oxfordshire Community Dental Service: Mouth care after surgery. reviewed July 18, 2025. Accessed October 26, 2026.
Humphris GM, Dyer TA, Robinson PG. BMC Oral Health 2009;9:20. The modified dental anxiety scale: UK general public population norms in 2008 with further psychometrics and effects of age. 2009. Accessed October 26, 2026.
Cochrane (Daly BJM et al.). What treatments can be used to prevent and treat alveolar osteitis (dry socket)?. 2022. Accessed October 26, 2026.

Last reviewed October 26, 2026 by the Dental Health Time editorial team, against the sources above. How we review.