Root Canal Therapy in Pickering
Root Canal Therapy
How can root canal therapy save a tooth?
Pickering root canal therapy treats infected, injured, or dead pulp inside a tooth so the tooth can be cleaned, sealed, and restored. Deep decay, a crack, trauma, or a failing restoration can allow bacteria to reach the pulp. Symptoms can include lingering sensitivity, pain when biting, swelling, or a pimple on the gum, but some teeth show few obvious signs.
What happens during root canal treatment?
After diagnosis and appropriate X-rays, the area is numbed and the tooth is isolated. The dentist creates an opening, removes the affected pulp, cleans and shapes the canal system, then fills and seals it. A temporary or permanent filling closes the opening. Treatment can take one or two appointments, and complex anatomy may require referral to an endodontist.
Why does the tooth still need a restoration?
Root canal treatment addresses the tissue inside the tooth; it doesn’t rebuild missing tooth structure. A filling or crown may be recommended afterward depending on how much tooth remains and the forces placed on it. Until the final restoration is complete, follow the chewing and care instructions provided.
How is the need for a root canal confirmed?
Symptoms alone don’t identify the correct treatment. Diagnosis can include the history of the tooth, tests for temperature or biting response, examination of the gums and nearby teeth, and appropriate X-rays. A cracked tooth, gum problem, sinus pressure, or another tooth can sometimes produce similar discomfort, so the source needs to be located before treatment begins.
When a tooth can’t be predictably restored, extraction and replacement options may need to be discussed instead. When the tooth can be retained, root canal treatment is intended to remove the affected pulp while preserving the outer tooth. Ask what alternatives apply, what restoration will follow, and what signs would change the recommendation.
Call (905) 420-1777 if you have swelling or significant tooth pain, or contact the office to arrange an assessment.
Frequently Asked Questions About Root Canal Therapy
Clinical team: Dr. Marvin Lean, DDS — Official Dentist of the Toronto Maple Leafs since 2005. Last updated: July 22, 2026.
Root canal treatment may be completed in one or two appointments, but the number depends on the tooth, infection, canal anatomy, and whether a specialist is involved. A separate visit may also be needed for the final filling or crown.
Some tenderness can occur for a short period after treatment. Follow the medication and chewing instructions you receive, keep the area clean, and contact the office if pain or swelling is severe, worsening, or doesn’t settle as expected.
No. The affected pulp is removed from inside the crown and roots, while the outer tooth remains. The goal is to retain and restore the natural tooth when that is a sound treatment option.
Yes. Root canal treatment doesn’t prevent decay, gum disease, cracks, or damage to the restoration. Daily cleaning and regular examinations remain important after treatment.
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