Dental emergency · Valleyfield
Pain or swelling after a root canal in Valleyfield
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01In brief
Pain after a root canal: normal or not?
Keep an eye on it
Some sensitivity when chewing for a few days after a root canal is common and gradually goes away. Pain that gets worse, swelling of the gum or cheek, fever, or a temporary filling that falls out should be reported. Call the Go Dentiste clinic in Valleyfield at 514-533-3368, even if the treatment was done at another clinic.
- ClinicGo Dentiste Valleyfield
785 Monseigneur-Langlois Boulevard, Salaberry-de-Valleyfield - Phone514-533-3368
- HoursOpen 7 days a week: Mon 8 a.m.–5 p.m., Tue 8 a.m.–7 p.m., Wed–Thu 8 a.m.–5 p.m., Fri–Sun 9 a.m.–2 p.m.
- OnlineBooking 24/7
- Time to treatmentSame day, subject to availability
- New patientsWelcome, no referral needed
02What to do now
What to do after a root canal
- Chew on the other sideUntil the final restoration, the tooth is more fragile: avoid hard foods on that side.
- Pain reliever: follow the adviceFrom your dentist or your pharmacist, based on your health and your medications.
- Watch how it changesPain that eases day after day is reassuring; pain that gets worse is not.
- Call if neededAt 514-533-3368 if you have swelling, fever, pain that is getting worse or a lost temporary filling.
What to avoid
- Chewing hard or sticky foods with the treated tooth
- Waiting if swelling appears
- Putting off the planned final crown or filling
- Taking an old antibiotic you found at home
Warning signs: Call 911 or go to the hospital emergency room (Hôpital du Suroît, in Valleyfield) if swelling spreads to the eye, under the jaw or to the neck, if you have trouble breathing, swallowing or opening your mouth, or if you have a high fever.
New patients · First visit
Your complete checkup, in a single visit.
A 45- to 75-minute visit
- Complete exam service and low-dose X-rays
- Cleaning service, the same day when possible
- Written treatment plan, every cost explained
- Coming as a family? Grouped appointments on request: a single trip
Vaudreuil-Dorion just opened: openings for new patients
03Is it urgent?
Hospital, clinic or appointment: how to decide
- Hospital or 911Swelling spreading to the eye or neck, trouble breathing, swallowing or opening your mouth, high fever: hospital emergency room or 911.
- Clinic, todayPain getting worse, swollen gum, temporary filling fell out: call to be seen quickly, subject to availability.
- In the next few daysMild sensitivity when chewing that eases every day: this is common; keep your follow-up appointment.
04At the Valleyfield clinic
How the pain is assessed and treated
The dentist checks the tooth and how your teeth close together (a tooth that sits too high can hurt when you bite), then takes an X-ray.
Depending on the case, the dentist adjusts the bite, replaces the temporary filling, cleans the canals again or plans the next steps of treatment. If an infection persists, a retreatment or another option is explained to you.
Directions to the Valleyfield clinic
Opening hours
Valleyfield
| MondayMon | 8 a.m. – 5 p.m. |
|---|---|
| TuesdayTue | 8 a.m. – 7 p.m. |
| WednesdayWed | 8 a.m. – 5 p.m. |
| ThursdayThu | 8 a.m. – 5 p.m. |
| FridayFri | 9 a.m. – 2 p.m. |
| SaturdaySat | 9 a.m. – 2 p.m. |
| SundaySun | 9 a.m. – 2 p.m. |
05Possible treatments
Services that may be offered to you in Valleyfield
The treatment depends on the exam: the dentist explains the options and their costs before starting.
06FAQ
Frequently asked questions: pain after a root canal
Is it normal to have pain after a root canal?
Sensitivity when biting for a few days is common, because the tissues around the root were irritated. It gradually goes away. Pain that gets worse should be assessed.
My temporary filling fell out: what should I do?
Call the clinic quickly: without it, bacteria can recontaminate the canals. Avoid chewing on that side in the meantime.
The treatment was done somewhere else: can you see me?
Yes. The dentist in Valleyfield examines you, relieves the pain and explains your options. Bring information about the treatment if you have it.
Why is a crown often recommended after a root canal?
A treated tooth, especially a molar, is often more fragile. A crown helps prevent a fracture. The dentist tells you whether one is recommended in your case.
07See also
Other dental emergencies in Valleyfield
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A dental emergency in Valleyfield? Call or book.
Same-day emergencies (subject to availability), 7 days a week at the Valleyfield clinic. New patients welcome, online booking 24/7.
Content prepared by the Go Dentiste team (Dr Dominic Morel-Maynard, general dentist and owner). Last updated: October 11, 2026. General information for guidance only: only an in-clinic exam can establish a diagnosis and a treatment plan suited to your situation. For health advice 24/7, call Info-Santé 811; in a serious emergency, call 911. Services are offered in French and English.