What Counts as a Dental Emergency? A Guide for Markham Families

Something goes wrong with a tooth at the worst possible moment — a Saturday evening, a long weekend, mid-way through your child's hockey game. You are in pain, you are worried, and you are not sure whether this is a true emergency or whether it can wait until Monday.

This guide gives you a clear, practical answer. We cover every common dental emergency, what the Canadian Dental Association recommends you do before reaching the dentist, when to go directly to a hospital instead, and where to get help in Markham when you need it most.

What Counts as a Dental Emergency?

A dental emergency is any situation involving severe pain, uncontrolled bleeding, infection with swelling, or a traumatic injury to the teeth, jaw, or mouth that requires same-day care to prevent serious harm.

The Royal College of Dental Surgeons of Ontario (RCDSO) divides dental situations into three tiers: emergencies (life-threatening — airway-compromising infections, uncontrolled bleeding, major facial trauma), urgent care (severe pain or risk of infection — severe toothache, knocked-out tooth, dental abscess, cracked tooth with exposed pulp), and non-urgent (routine issues that can wait for a scheduled appointment).

Here is a quick reference:

Condition	Urgency	Time Window
Knocked-out permanent tooth	🔴 Emergency	Act within 30–60 minutes
Severe facial swelling / suspected abscess	🔴 Emergency	Same-day or ER immediately
Suspected broken jaw	🔴 Emergency	Go to ER now
Uncontrolled oral bleeding	🔴 Emergency	ER if not stopped in 20 min
Severe toothache with fever or swelling	🔴 Emergency	Same-day dental visit
Cracked tooth with severe pain	🔴 Urgent	Same-day dental visit
Lost crown or filling with severe pain	🟡 Urgent	Same-day or next business day
Moderate toothache without swelling	🟡 Urgent	Within 24–48 hours
Small chip with no pain	🟢 Non-urgent	Next available appointment
Mild bleeding gums during brushing	🟢 Non-urgent	Routine appointment
Loose baby tooth	🟢 Non-urgent	Routine appointment

Is a Toothache a Dental Emergency?

It depends entirely on the severity and accompanying symptoms. A mild or dull toothache that responds to over-the-counter pain relief and has no swelling or fever can usually wait for a same-day or next-day appointment. However, a toothache becomes a dental emergency when:

• The pain is severe, throbbing, or wakes you from sleep

• There is visible swelling of the face, jaw, or gums

• You have a fever above 38°C (100.4°F) alongside the pain

• There is a bad taste or smell in the mouth suggesting infection or abscess

• The pain has lasted more than 24–48 hours without improvement

A toothache that fits any of the above criteria should be treated as an emergency. An untreated dental abscess — a pocket of infection at the root of a tooth — can spread rapidly. If the swelling begins closing an eye, distorting the neck, or causing difficulty breathing or swallowing, go directly to a hospital emergency room. These are signs of a potentially life-threatening spread of infection.

The Canadian Dental Association's guidance is clear: do not apply heat to a toothache and never place aspirin directly against the gum. Both will make the situation worse, not better.

What to Do When You Have a Dental Emergency

When a dental emergency happens, the most important thing is to act quickly but calmly. Here is a five-step protocol:

Step 1 — Assess the situation. Is there any difficulty breathing, swallowing, or signs of a broken jaw? Go directly to the nearest hospital emergency room. For Markham residents, that is Markham Stouffville Hospital at 381 Church Street — (905) 472-7000. Call 911 if the situation is life-threatening.

Step 2 — Control bleeding or pain immediately. Apply firm, direct pressure with clean gauze to any bleeding area and hold for 15–20 minutes without lifting. For pain, take ibuprofen (400 mg every 6 hours) — the most effective over-the-counter option for dental pain. Add acetaminophen (500 mg) between ibuprofen doses for severe pain. Apply a cold compress to the outside of the cheek — 15 minutes on, 15 minutes off. Never apply heat.

Step 3 — Preserve any tissue. If a tooth has been knocked out, handle it by the crown only — never the root. Rinse gently under cool water for no more than 10 seconds. Do not scrub, dry, or wrap it. If possible, reinsert it gently into the socket and bite down softly on gauze to hold it. If reinsertion is not possible, store it in cold whole milk — the best widely-available medium for preserving the periodontal ligament cells that allow successful reimplantation.

Step 4 — Call your dentist immediately. Contact Hwy7 Family Dentistry at (905) 604-1995 for same-day emergency appointments. If it is after hours, call Health811 by dialling 811 — Ontario's free 24/7 registered nurse triage line, available in over 230 languages including Mandarin and Cantonese.

Step 5 — Go directly to the dentist or ER. Bring any tooth fragments stored in milk, your insurance card, a list of medications you are currently taking, and — if relevant — photos of any swelling taken over the past few hours to help the dentist assess how quickly the condition is progressing.

The 8 Most Common Dental Emergencies — and Exactly What to Do

1. Knocked-Out Tooth

This is the most time-critical dental emergency. According to the International Association of Dental Traumatology (IADT) 2020 guidelines, the window for successful reimplantation of a permanent tooth is ideally within 30 minutes — and certainly within 60 minutes. Every minute beyond that reduces the survival rate of the periodontal ligament cells that allow the tooth to reattach.

The 30-minute rule: A knocked-out permanent tooth can often be saved — but only if you act in the first 30 minutes. Store it in cold milk and call us immediately at (905) 604-1995.

What to do:

• Pick up the tooth by the crown only — never the root

• Rinse under cool water for 10 seconds maximum — no scrubbing, no soap, no alcohol

• Reinsert into the socket immediately if possible — bite gently on gauze

• If reinsertion is not possible: store in cold whole milk, Hank's Balanced Salt Solution (Save-a-Tooth kit), or held in the cheek pouch against the gum — never in water, which destroys PDL cells

• Call (905) 604-1995 and head straight to our Unionville location

  
  

Critical note for parents — baby teeth are different: Do NOT attempt to reimplant a knocked-out baby (primary) tooth. Reinserting a primary tooth can damage the developing permanent tooth bud beneath it. Bring the tooth in milk to the dentist for assessment — but do not reinsert it. This is one of the most important and least-known distinctions in paediatric dental emergencies, and it is why having a trusted paediatric dentist in Markham matters.

2. Severe Toothache

Rinse with warm water and floss gently — food trapped between teeth is a surprisingly common cause of sudden dental pain and often resolves it immediately. Apply a cold compress externally. Take ibuprofen at the recommended dose. Do not place aspirin against the gum — it causes a chemical burn to the soft tissue.

Seek same-day care if the pain is severe, accompanied by swelling or fever, or has lasted more than 24 hours.

3. Dental Abscess

A dental abscess is a bacterial infection producing a pocket of pus at the root of a tooth or in the gum tissue. Signs include a severe, persistent toothache, sensitivity to heat and cold, fever, swollen lymph nodes in the neck, and a swelling that may feel like a pimple on the gum.

Do not attempt to drain an abscess at home — this can spread the infection. Rinse with warm salt water (half a teaspoon of salt in a glass of warm water) several times per day to help draw out infection and reduce inflammation. Take OTC analgesics and call your dentist for a same-day appointment.

Go to the ER immediately if: fever exceeds 38.3°C (101°F), you have difficulty breathing or swallowing, the swelling is progressing rapidly toward the neck or eye, you cannot open your mouth more than a couple of centimetres, or you feel confused, dizzy, or have a rapid heart rate. These are warning signs of spreading infection that can become life-threatening.

4. Cracked or Broken Tooth with Pain

Save any fragments in cold milk or saliva and bring them to your appointment — bonding may be possible. Rinse your mouth with warm water and apply gauze with gentle pressure if there is bleeding. Cold compress externally and avoid chewing on that side. If a sharp edge is cutting your tongue or cheek, cover it with a small piece of sugar-free chewing gum or orthodontic wax.

5. Lost Crown or Filling

A lost crown without pain can wait until the next business day. A lost crown or filling with significant sensitivity or exposed nerve pain requires same-day attention.

For a lost crown: clean it gently, coat the inside with OTC temporary dental cement (such as Dentemp), and slip it carefully back over the tooth. For a lost filling: pack the cavity temporarily with sugar-free gum or OTC dental cement. Do not use super glue under any circumstances.

6. Soft-Tissue Injury (Lip, Tongue, Cheek)

Rinse gently with warm water. Apply direct pressure with clean gauze for 15–20 minutes. A moistened black tea bag works well — the tannic acid promotes clotting. Cold compress to the outside of the lip or cheek.

Go to the ER if the laceration is deep, gaping, or bleeding will not stop after 20 minutes of continuous direct pressure.

7. Suspected Broken Jaw

Do not go to a dentist first — go directly to Markham Stouffville Hospital ER at 381 Church Street. A broken jaw requires hospital-level imaging and care. Immobilise the jaw gently with a scarf or tie wrapped under the chin and over the top of the head. Apply ice. Do not eat, drink, or speak more than necessary.

8. Severe or Rapidly Progressing Facial Swelling

Sit upright — do not lie flat. Cold compress 15 minutes on, 15 minutes off. Call 911 or go directly to the ER if the swelling is closing an eye, distorting the neck, causing difficulty breathing, swallowing, or speaking, or if the patient has a high fever with any neurological symptoms. These are signs of a potentially life-threatening condition called Ludwig's angina or facial cellulitis.

What Is NOT a Dental Emergency

These situations are genuinely unpleasant but do not require same-day emergency care:

• A small chip or crack with no pain or sensitivity

• A mild, dull toothache that responds to OTC pain relief

• A lost crown with no pain (cover it and book first available appointment)

• An object stuck between teeth — use floss only, never a pin or sharp instrument

• Mild gum bleeding during brushing

• A broken orthodontic wire — cover with orthodontic wax until your next appointment

• A canker sore, cold sore, or minor mouth ulcer

Managing Dental Pain at Home While You Wait

While you wait for your emergency appointment, the most effective home pain management protocol is:

Ibuprofen + acetaminophen combination: Take ibuprofen 400 mg every 6 hours. Between doses, add acetaminophen 500 mg. This combination provides better pain control than either medication alone and is supported by the ADA's current acute dental pain management guidance. Stay within recommended daily maximums and consult a pharmacist if you have kidney disease, liver disease, stomach ulcers, or are taking blood thinners.

Cold compress: Applied to the outside of the cheek — 15 minutes on, 15 minutes off. Never apply heat to a toothache — the CDA explicitly warns that heat will make things significantly worse.

Salt-water rinse: Half a teaspoon of salt dissolved in a full glass of warm water, rinsed gently around the mouth several times per day. Reduces inflammation and helps clear debris.

Elevated sleeping position: Sleep with your head elevated on an extra pillow to reduce throbbing pressure.

Clove oil: A cotton swab dab of clove oil (eugenol) applied directly to the affected tooth or gum provides short-term numbing relief. Available at most Markham pharmacies.

Emergency Dentist vs. Hospital ER in Markham

This is one of the most searched questions in dental emergency care — and the answer matters practically.

Go to an emergency dentist for: severe toothache, knocked-out or broken tooth, lost crown or filling with pain, localised dental abscess, dry socket, cracked tooth with pain, soft-tissue injuries with controlled bleeding.

Go to Markham Stouffville Hospital ER (381 Church St, 905-472-7000) for: suspected broken jaw, facial swelling that is closing the eye or distorting the neck, difficulty breathing or swallowing, uncontrolled bleeding after 20 minutes of pressure, high fever with dental pain suggesting spreading infection, any situation involving unconsciousness or trauma.

Important note for Ontario patients: OHIP does not cover most dental emergency procedures unless the treatment takes place in a hospital setting (such as jaw fracture surgery). Most emergency dental work is private-pay, covered by extended health benefits, or — for eligible patients — covered in part by the Canadian Dental Care Plan (CDCP). Ask about CDCP coverage when you call.

For income-eligible families with children under 18, York Region Public Health operates a dental clinic at 4261 Highway 7 East, Unionville providing urgent dental coverage through Healthy Smiles Ontario — call 1-800-735-6625 x74388.

After-Hours Dental Emergencies in Markham: Your Real Options

Option	Hours	Contact
Hwy7 Family Dentistry	Mon–Fri 9:30 AM–6 PM; Thu to 9 PM; Sat 9 AM–4 PM; Sun by appointment	(905) 604-1995
Emergency Dental Office Markham	Mon–Fri 10 AM–10 PM; Sat 3–10 PM	(289) 302-6864
Health811	24/7 — free RN triage, 230+ languages	Dial 811
Markham Stouffville Hospital ER	24/7	381 Church St — (905) 472-7000
Bur Oak Dental	Business hours, priority emergency slots	Three Markham locations

How Hwy7 Family Dentistry Handles Dental Emergencies in Unionville

At Hwy7 Family Dentistry, we reserve same-day appointment slots specifically for dental emergencies. If you call us at (905) 604-1995 before 2 PM on any weekday, we will make every effort to see you the same day. We are also open Thursday evenings until 9 PM and Saturdays from 9 AM to 4 PM — two of the most common times families encounter dental emergencies outside of regular hours.

Our Unionville location is equipped for same-day X-rays, pain management, temporary and definitive restorations, emergency extractions, and urgent endodontic treatment. We accept most major insurance plans and are registered with the Canadian Dental Care Plan.

We also have multilingual team members — important in a community as diverse as Markham.

Build a Dental First-Aid Kit for Your Home

Having these items on hand means you can act immediately in a dental emergency rather than scrambling for supplies:

• Clean gauze pads

• OTC temporary dental cement (Dentemp or similar)

• Orthodontic wax

• A small lidded container (for storing a knocked-out tooth in milk)

• Ibuprofen and acetaminophen

• Clove oil (eugenol)

• Your dentist's phone number saved in your phone: (905) 604-1995

• Health811 in your contacts: 811

Frequently Asked Questions

What counts as a dental emergency?  A dental emergency is any dental situation involving severe pain, uncontrolled bleeding, rapidly spreading infection, or traumatic injury to the teeth or jaw that requires same-day care to prevent serious harm. This includes knocked-out teeth, severe dental abscesses, cracked teeth with exposed pulp, broken jaws, and severe facial swelling.

Is a toothache a dental emergency? 

A mild toothache can usually wait for a next-day appointment. A toothache is a dental emergency when it is severe, accompanied by swelling or fever, has lasted more than 24–48 hours without improving, or is disrupting sleep. A toothache with facial swelling and fever may indicate a spreading infection requiring immediate care.

What to do when you have a dental emergency? 

Assess whether the situation is life-threatening — if so, call 911 or go to the ER immediately. For most dental emergencies: control bleeding with direct gauze pressure, manage pain with ibuprofen and a cold compress, preserve any knocked-out tooth in cold milk, and call your dentist at (905) 604-1995 for a same-day appointment. For after-hours guidance, dial 811 for free nurse triage.

How long do I have to save a knocked-out tooth? 

Ideally within 30 minutes — and certainly within 60 minutes. The periodontal ligament cells on the root surface begin dying after 15 minutes of dry storage. Store the tooth in cold whole milk if immediate reimplantation is not possible, and head to the dentist immediately.

Should I go to the ER for tooth pain in Markham? 

For most tooth pain, an emergency dentist is the appropriate first call — Ontario ERs do not typically perform dental procedures. Go to Markham Stouffville Hospital ER if you have difficulty breathing or swallowing, a suspected broken jaw, rapidly spreading facial swelling, uncontrolled bleeding, or high fever with dental infection.

Is a knocked-out baby tooth an emergency? 

Yes — call your dentist for assessment. However, do NOT attempt to reimplant a baby tooth. Reinserting a primary tooth can damage the developing permanent tooth beneath it. Bring the tooth in milk to your appointment for assessment only.

Can I take antibiotics for a dental emergency at home? 

Only if they have been prescribed by your dentist or physician for this specific episode. The CDA advises that antibiotics should only be taken if there is fever or visible swelling outside the face — they are not a substitute for definitive dental treatment and do not eliminate a dental infection on their own.

Does OHIP cover dental emergencies in Ontario? 

OHIP generally covers dental procedures only when treatment occurs in a hospital setting, such as jaw fracture surgery. Most emergency dental work is private-pay or covered by extended health benefits. Eligible patients may use the Canadian Dental Care Plan (CDCP); children from income-eligible families may access urgent care through Healthy Smiles Ontario via the York Region Markham Dental Clinic at 4261 Highway 7 East.

Dental Emergency in Markham? Call Us First.

When a dental emergency happens, every minute counts — especially with a knocked-out tooth. The right call at the right time can be the difference between saving a tooth and losing one permanently.

Hwy7 Family Dentistry is located at 4560 Hwy 7 E, Unit 500, Unionville, Markham — with same-day emergency appointments available Monday through Saturday and extended Thursday hours until 9 PM.

📞 Call us at (905) 604-1995 🌐 Book online or learn more about our emergency dental services