In brief
A dental emergency is a problem that needs prompt care to relieve severe pain, stop bleeding, control infection or save a tooth. Examples include a knocked-out adult tooth, facial swelling with tooth pain, severe toothache that will not settle and injuries to the teeth or jaw. Some situations need a hospital or 911 instead, including difficulty breathing or swallowing, swelling spreading to the eye or neck, fever with swelling, uncontrolled bleeding and facial trauma. A painless chip or lost filling is urgent but usually not an emergency.
Key takeaways
- Emergencies involve severe pain, swelling, uncontrolled bleeding, infection or a tooth at risk of being lost.
- A knocked-out permanent tooth is extremely time-sensitive — minutes matter.
- Swelling spreading to the face, eye or neck signals infection that must not wait.
- Painless chips, lost fillings and mild sensitivity are urgent but usually not emergencies.
A dental emergency is any dental problem that needs prompt professional care to relieve severe pain, stop bleeding, control infection or save a tooth. Clear examples are a knocked-out adult tooth, facial swelling with tooth pain, a severe toothache that will not settle, bleeding that will not stop and injuries to the teeth or jaw. A small painless chip, mild sensitivity or a lost filling without pain is usually urgent, not an emergency: it should be seen soon, but not necessarily today.
Some symptoms go beyond what a dental office can handle. If you have difficulty breathing or swallowing, swelling spreading to the eye or neck, fever with facial swelling, bleeding that will not stop with firm pressure or a serious facial injury, go to the hospital or call 911.
This guide explains how to sort dental problems into emergencies, urgent problems and issues that can wait, with first-aid steps for the most common situations.
Is it a dental emergency? Four levels of urgency
It helps to think of dental problems in four groups, from most to least urgent.
| Level | Examples | What to do |
|---|---|---|
| Medical emergency | Difficulty breathing or swallowing, swelling spreading to the eye or neck, fever with facial swelling, uncontrolled bleeding, facial trauma, suspected jaw fracture | Go to the hospital emergency department or call 911 |
| Dental emergency | Knocked-out adult tooth, tooth pushed out of place, facial or gum swelling with pain, severe toothache, broken tooth with severe pain | Contact a dental office right away |
| Urgent but not an emergency | Painless chip, lost filling or crown without severe pain, broken denture, mild toothache that comes and goes | Call the dental office and book a visit soon |
| Can usually wait for a routine visit | Mild sensitivity to cold that passes quickly, a small rough edge, minor staining | Mention it at your next checkup, or sooner if it changes |
When a situation seems to fit more than one level, treat it as the more serious one.
When is a dental problem a medical emergency?
These signs mean the problem may be affecting more than a tooth. Go to the hospital or call 911 if you have:
- Difficulty breathing or swallowing, or you cannot swallow your saliva
- Swelling spreading to the eye or neck, or swelling under the tongue or jaw that feels firm
- Fever with swelling, or you feel very unwell, confused or unusually drowsy
- Uncontrolled bleeding that continues after 15 to 20 minutes of firm pressure
- Facial trauma, such as a suspected broken jaw, a jaw that will not close properly, deep facial cuts, or an injury involving loss of consciousness, vomiting or confusion
A hospital can protect your airway, treat spreading infection and assess head and jaw injuries. The tooth itself is then treated by a dentist once you are stable. Our guide on whether to go to an emergency dentist or the hospital explains this decision in more detail.
What are the most common dental emergencies?
A knocked-out adult tooth
This is the most time-sensitive dental injury. The chance of saving the tooth is highest when it is replanted or seen very quickly, ideally within the first 30 to 60 minutes.
- Pick the tooth up by the crown (the white part), not the root.
- If it is dirty, rinse it briefly with milk or cold water. Do not scrub it.
- If you can, gently push it back into the socket and bite on a clean cloth to hold it.
- If you cannot replant it, keep it in milk or in the person’s own saliva. Do not store it in plain water.
- Contact a dental office right away.
Do not try to replant a baby tooth, because this can damage the adult tooth developing underneath. Full steps are in what to do if a tooth is knocked out.
A tooth pushed out of position
A tooth that has been knocked sideways, pushed in or partly out of its socket needs prompt care. Do not force it back. Bite gently on a clean cloth if it is comfortable, apply a cold compress to the outside of the face and contact a dental office.
Facial or gum swelling with tooth pain
Swelling of the gum, cheek or jaw along with toothache usually points to an infection, often an abscess at the root of a tooth. Infection does not go away on its own and can spread. A small, localized swelling on the gum needs a prompt dental visit. Swelling that is spreading, affecting the eye or neck, or comes with fever needs the hospital. Facial swelling and tooth pain explains the warning signs.
Severe toothache
Pain that keeps you awake, throbs, does not respond to over-the-counter pain relief, or lingers long after hot or cold contact often means the nerve inside the tooth is inflamed or infected. This rarely settles on its own. Contact a dental office. See what to do for a severe toothache for home care while you wait.
A broken tooth with severe pain
A cracked or fractured tooth that is very painful, bleeding, or shows pink or red tissue in the centre may have an exposed nerve. Rinse gently with warm water, save any pieces, and contact a dental office promptly.
Bleeding that will not stop
After an extraction or injury, some oozing is normal. Place folded gauze or a clean cloth over the area and bite with firm, steady pressure for 15 to 20 minutes without checking. If bleeding continues after that, contact the dental office if it has slowed, or go to the hospital if it is heavy or does not stop.
What dental problems are urgent but not emergencies?
These problems should be booked soon, usually within days, but most do not need immediate care:
- A small chipped tooth without pain or sharp edges
- A lost filling where the tooth is not very sensitive; see what to do if a dental filling falls out
- A crown that has come off without severe pain; keep the crown and read what to do if a dental crown falls off
- Mild or on-and-off toothache
- A broken denture or one with a sharp edge
- Food stuck between teeth that you cannot remove with floss
- A loose or broken orthodontic wire that is poking the cheek
“Not an emergency” does not mean “safe to ignore.” A lost filling leaves softer tooth structure exposed, a chipped tooth can break further, and mild pain can become severe. Booking a visit soon usually means simpler treatment.
Can a dental emergency wait until morning?
Sometimes. It depends on the symptoms.
Do not wait if you have any hospital warning signs: difficulty breathing or swallowing, swelling spreading to the eye or neck, fever with swelling, uncontrolled bleeding or facial trauma. Go to the hospital or call 911 at any hour.
Act immediately for a knocked-out adult tooth. Follow the first-aid steps and seek care as quickly as you can.
It can often wait until the office opens if you have a toothache, broken tooth, lost filling or crown, or mild gum swelling without fever, and the pain is manageable. Use the home-care steps below and call first thing.
York Street Dental Centre is open Monday to Friday. If you are unsure outside office hours, Ontario’s Health811 service (dial 811) offers free advice from a registered nurse.
What can you do at home while you wait?
These steps can ease discomfort until you are seen:
- Rinse gently with warm salt water to keep the area clean.
- Use a cold compress on the outside of the cheek, 10 to 15 minutes at a time, for pain, swelling or injury.
- Take over-the-counter pain relief as directed on the package. Ask a pharmacist if you take other medicines.
- Keep your head raised when lying down.
- Chew on the other side and avoid very hot, cold, hard or sugary foods.
- Save any broken pieces of tooth or a lost crown and bring them with you.
Avoid these common mistakes:
- Do not place aspirin or any tablet against the gum. It can burn the tissue.
- Do not put heat on a swollen face.
- Do not take leftover antibiotics or someone else’s prescription.
- Do not try to pop or drain a gum swelling yourself.
- Do not use household glue to reattach a crown or tooth fragment.
Do dental emergencies affect children differently?
Children have many of the same emergencies as adults, especially knocked-out or chipped teeth from falls and sports. A few points differ:
- Baby teeth that are knocked out should not be put back in. Contact a dentist for advice.
- Injuries to baby teeth still matter, because the adult teeth are developing just underneath.
- Children can become unwell quickly with infection. Facial swelling with fever, unusual drowsiness or trouble swallowing needs urgent medical care.
- Watch for other injuries. A fall hard enough to damage teeth can also cause a head injury.
We see children, adolescents and patients with special needs, and can talk through what to watch for after an injury. Learn more on our children’s dentistry page.
How can you prevent dental emergencies?
Many dental emergencies start as smaller problems that were not treated. You can lower your risk by:
- keeping up regular checkups and cleanings, so decay and cracks are found early
- treating a toothache or sensitive tooth before it becomes severe
- wearing a mouthguard for hockey, basketball, soccer, lacrosse and other contact sports
- wearing a nightguard if you grind or clench
- avoiding chewing ice, hard candy, popcorn kernels and pens
- never using your teeth to open packages or bottles
- finishing recommended treatment, such as a crown after a root canal
What happens when you call the dental office?
When you call, the team will usually ask about:
- what happened and when
- where the pain or swelling is and how severe it is
- whether you have a fever or feel unwell
- whether there was an injury, and if any teeth are loose, broken or missing
- your medical history and medications
This helps judge how soon you need to be seen and what to prepare. If anything you describe suggests a medical emergency, you will be advised to go to the hospital first.
At the dental visit, the dentist examines the area and usually takes X-rays. The first goal is to relieve pain and control any infection or bleeding. Some problems can be treated in one appointment; others need a first visit to stabilize the tooth and a follow-up to complete treatment. You will be told what was found, your options and estimated fees before treatment.
Is emergency dental care covered by insurance?
Coverage depends on your plan and on the treatment you need, not on whether the visit was an emergency. Many private dental plans cover an emergency exam and X-rays, and treatment such as fillings, root canal treatment or extractions is covered according to your plan’s categories, percentages and annual maximums.
A few tips can help when you are in pain and short on time:
- bring your insurance card or plan details to the appointment
- ask for an estimate of fees before treatment begins, if the situation allows
- for larger treatment that can safely wait, ask whether a predetermination should be sent to your insurer first
York Street Dental Centre offers direct insurance billing for many plans and welcomes eligible CDCP patients. Our team will explain what we find, your options and the estimated fees before we start.
Getting emergency dental advice in Cornwall
If you have a dental problem without hospital warning signs, call York Street Dental Centre at 118 York Street as early as you can. Our team will listen to your symptoms and advise on the next appropriate step. New patients do not need a referral, and we see children, adults and seniors.
We hear from patients in downtown Cornwall, Riverdale, Glenview Heights and Eamer’s Corners, and from nearby St. Andrews West and Cornwall Island (Akwesasne). For difficulty breathing or swallowing, swelling spreading to the eye or neck, fever with swelling, uncontrolled bleeding or facial trauma, go to the nearest emergency department or call 911.
Contact the clinic
If you have significant tooth pain, swelling, a broken or knocked-out tooth or another urgent dental concern, call York Street Dental Centre at (613) 932-1620 or contact us. For concerns that can wait a few days, you can request an appointment. Learn more about emergency dentistry at our office.
Frequently asked questions
Is a broken tooth always an emergency?
No. A small painless chip can usually wait a few days. A fracture with severe pain, bleeding, a visibly exposed inner tooth or a loose fragment should be treated urgently.
Can a dental infection go away on its own?
The pain sometimes fades temporarily — often because the nerve has died — but the infection itself remains and can spread. Any suspected abscess should be examined even if symptoms improve.
What if a baby tooth is knocked out?
Do not attempt to reinsert a baby tooth, as this can damage the developing adult tooth underneath. Contact a dentist promptly for assessment instead.
Should I go to the hospital for a toothache?
Hospitals can manage pain and infection but generally cannot treat the tooth itself. For toothache without life-threatening symptoms, a dental office is usually the right destination; for breathing or swallowing difficulty, go to the emergency department.
Is a lost crown a dental emergency?
Usually it is urgent rather than an emergency. If the tooth is not painful, keep the crown safe, avoid chewing on that side and call your dental office to arrange a visit soon. If the tooth is very sensitive, broken or painful, or the crown was knocked out in an injury, contact the office as early as possible.
What should I do if I am not sure whether it is an emergency?
Call your dental office and describe the symptoms, including pain level, swelling, fever and any injury. The team can help judge how soon you need to be seen. If you have difficulty breathing or swallowing, swelling spreading to the eye or neck, fever with swelling, uncontrolled bleeding or facial trauma, go to the hospital or call 911.
Sources
- Canadian Dental Association — Dental Emergencies
- Cleveland Clinic — Dental Emergencies
- American Dental Association (MouthHealthy) — Dental Emergencies
About the author
This article was written by the York Street Dental Centre Team and reviewed for clinical accuracy by the York Street Dental Centre dental team. York Street Dental Centre is a family dental office at 118 York Street, Cornwall, Ontario K6J 3Y8, providing general, preventive, restorative, and cosmetic dental care for patients of all ages.
Our articles explain common dental questions in plain language, cite reputable health and government sources where relevant, and are updated when guidance changes. Read our editorial policy or learn more about our practice.
This content is intended for general educational purposes and does not replace an examination, diagnosis or personalized treatment recommendation from a dental professional.