Tenderness when biting
Pressure may feel sore, or the tooth may feel high when you close. Note whether it is constant or only with chewing. The bite, clenching habits and neighbouring teeth are checked before any further canal work is discussed.

Catching yourself chewing on one side to spare an old root canal tooth is a sign worth acting on. From Bolton or elsewhere in Caledon, you can have the tooth and your bite checked, and find out whether retreatment or another approach fits.
It often starts without much thought. You move food to the left, avoid biting into apples, or notice the tooth feels slightly taller than its neighbours. When that tooth already had a root canal, these small adjustments can be the first hint that something around the root has changed and is worth a professional look.
The cause is not always the old treatment. A high bite, clenching, a crack, gum inflammation or a neighbouring tooth can produce similar feelings. Sometimes, though, healing has not completed, or decay or a leaking restoration has let bacteria back into the canals. In those cases retreatment, removing the old filling and then cleaning and resealing the canals, may help keep the tooth if it can be rebuilt well afterward.
Households in Caledon often juggle long days and spread-out schedules, so a clear plan from the first visit helps. Mention how you have been chewing and what you know about the earlier treatment. We will check the tooth and your bite, explain what the tests and images show, and talk about whether a specialist should be involved.

Tell us when you first noticed it and how it compares with the period after the original root canal. That account focuses the exam, though tests are needed to confirm a cause.
Pressure may feel sore, or the tooth may feel high when you close. Note whether it is constant or only with chewing. The bite, clenching habits and neighbouring teeth are checked before any further canal work is discussed.
Sometimes the first clue is on a radiograph rather than in your mouth. Ask what was seen and whether earlier images can be compared. Monitoring, testing or treatment may follow, and feeling comfortable does not settle every question about healing.
A rough edge, a loose crown, a cracked filling or new decay can affect a tooth treated years ago. Mention when you noticed it. The restoration and the inside of the tooth are assessed as a whole.
Keep any scheduled review even if chewing feels better. If pain builds, swelling appears, or a bump keeps returning on the gum, call ahead so the team can decide whether you should come in sooner.
Where the canals are the likely cause, retreatment gives the tooth another chance at healing so you can use it normally again. You deserve to hear which findings favour it and which factors could hold it back. Keeping your natural tooth is a good aim when it can be rebuilt to handle everyday chewing.
Expect to discuss the crown or filling, any post, the amount of sound tooth, and the first treatment. Ask what has to be removed for access and how your bite will be checked afterward. With the whole sequence laid out, comparing retreatment and the alternatives becomes clearer.
Patient information: AAE — understanding endodontic retreatment
Ask what the retreatment would address and which uncertainties remain. If the bite or clenching is contributing, ask how that will be managed too. A sore tooth alone is not a reason to repeat canal work.
Previously treated teeth can be harder to diagnose and re-enter. An endodontist may be suggested to evaluate or treat the tooth. Ask what the referral will help decide and how findings will be passed to whoever rebuilds the tooth.
Discuss the final crown or filling before the canal work begins. Ask about visits and costs for that part. A well-fitted restoration protects the tooth and helps restore an even bite.
Visit numbers and order depend on the tooth. Ask who leads each step and how the tooth will be safeguarded between visits.
Describe how you have been chewing and bring any records. Examination, bite assessment and imaging help locate the source. Additional tests or specialist input may be needed before a recommendation.
You will hear whether retreatment suits the tooth, the expected difficulties, and the alternatives. Ask how the crown would be handled, what the estimate covers, and what would happen if findings change during treatment.
If you go ahead, the old root filling is removed as required, then each canal is cleaned and sealed afresh. Local anaesthetic and isolation are used. Some teeth need more than one appointment.
The final restoration is placed and the bite checked so the tooth is not overloaded. Confirm who will do this work. Later reviews assess comfort, chewing and healing over time rather than relying on the first few days.
Ask for advice specific to what was done at your visit. A temporary covering, a finished restoration, and treatment left in progress need different care.
Eat once the numbness has gone, and follow guidance about loading the tooth. Tough steak, nuts and crusty bread can wait a little. Should the temporary start to lift or rock, phone whoever placed it; don’t hold out for the next booked visit.
Let us know if the tooth feels high, soreness is increasing, or swelling develops, and roughly when the change started. Stick to the pain-control approach suggested for you, and double-check any new medicine against your medical history first.
The crown and the healing checks might sit with two different offices. Find out how your information moves between them and who your contact is in the meantime. Once the crown is on, a recommended review of the root still matters.
Nothing needs to be decided until the diagnosis and sequence make sense to you. Holding quotes from two offices? Line them up and see what each one leaves out.
Book an assessment at our Bronte Street practice for a tooth with a previous root canal. Bring any records, and we will go over the tooth, your bite, the possible role of a specialist, and the restoration that would follow.
If pain is building or swelling has appeared, phone the clinic rather than waiting for an online request to be answered.