Root canal therapy has one of the most undeserved reputations in dentistry. The procedure patients dread is, in reality, one of the most effective ways to relieve tooth pain — not cause it. At Sky Dental Centre, Dr. Ahmed Al-Obaidi (BDS, DDS) performs root canal treatment under thorough local anaesthesia as part of his general dental practice, with an approach that prioritises your comfort and the long-term preservation of your natural tooth.
Root canal therapy — also called endodontic treatment — treats a tooth whose pulp (the soft inner tissue containing nerves and blood vessels) has become infected, severely inflamed, or has died. The goal is to remove damaged tissue, clean and disinfect the root canal system, seal it against reinfection, and restore the tooth to full function, typically with a crown.
When the pulp is compromised, the realistic options are root canal therapy to save the tooth, or extraction to remove it. In most cases where the tooth is structurally sound enough to restore, root canal therapy is the more clinically conservative choice — preserving the natural tooth root, maintaining jawbone stimulation, and avoiding the time and cost of replacement.
Root canals relieve pain — they don’t cause it. The pain patients dread is from the infection that precedes the procedure, not the procedure itself. Many root canals complete in one to two visits. With a proper crown, root-canal-treated teeth can last decades. Pulling the tooth is not always the better option — preserving a natural tooth is generally preferred clinically.
Your natural tooth root stimulates the surrounding jawbone, maintains spacing, and distributes bite forces in a way no prosthetic can fully replicate. Saving a natural tooth with root canal therapy preserves all of that — which is why it is preferred over extraction whenever clinically viable. Replacing a tooth with an implant involves more treatment, more time, and generally more cost.
Root canal therapy is indicated when the dental pulp has become irreversibly inflamed or infected — from deep decay, a crack extending into the pulp, trauma, or a large failing restoration. It is also indicated when a periapical abscess has formed at the root tip. Not every toothache requires a root canal; the consultation determines what is actually occurring clinically before any treatment is recommended.
These symptoms commonly indicate pulp involvement requiring assessment. Not all tooth pain means a root canal is needed — the consultation determines what is actually occurring clinically.
Throbbing pain that doesn’t subside — particularly pain that lingers after the stimulus is removed or wakes you from sleep — indicates pulp inflammation or infection. Sensitivity to heat or cold persisting more than 10–15 seconds after the stimulus is removed (especially to heat) often indicates irreversible pulpitis: inflammation that won’t heal on its own.
A small raised spot on the gum near a tooth (fistula or parulis) indicates an abscess draining through the gum — a sign of active infection. Facial swelling spreading toward the jaw or neck requires immediate attention. A tooth that gradually turns grey or dark brown without external cause has often undergone internal pulp breakdown — dead pulp releases breakdown products that discolour the tooth from within.
Discomfort when chewing or touching a specific tooth suggests inflammation has spread to the periodontal ligament around the root — a progression from initial pulp involvement. Often accompanied by a sensation that the tooth feels raised or elevated. The tooth is responding to bite pressure that would previously have been pain-free.
Sometimes extensive decay or a significant crack has reached the pulp without causing noticeable pain — particularly if the pulp has begun to die. In these cases, the need for root canal therapy is identified during a routine examination. Asymptomatic doesn’t mean safe to leave untreated — the infection continues silently, causing bone destruction visible on X-ray.
These symptoms commonly indicate pulp involvement requiring assessment. Not all tooth pain means a root canal is needed — the consultation determines what is actually occurring clinically.
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Digital X-rays assess root anatomy, extent of infection, and surrounding bone. Dr. Al-Obaidi explains what the X-rays show before anything proceeds. Local anaesthetic is then administered thoroughly — including supplemental techniques for acutely infected teeth, where standard anaesthesia is less effective. The procedure does not begin until the area is genuinely numb. You should feel pressure and vibration — not pain.
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A thin rubber barrier isolates the tooth from the rest of the mouth — keeping it dry, preventing contamination by saliva, and stopping irrigating solutions from reaching the throat. A small opening is then made through the crown of the tooth to access the pulp chamber. The infected or inflamed pulp tissue is carefully removed using fine files designed to navigate the narrow root canals.
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Canals are shaped progressively while being continuously irrigated with antimicrobial solution (typically sodium hypochlorite) to disinfect the canal system including areas instruments cannot directly reach. Once cleaned, dried, and confirmed free of infected tissue, canals are filled and sealed with gutta-percha — a biocompatible thermoplastic material. A sealer cement ensures a complete hermetic seal. X-rays confirm proper fill length and density.
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Root canal therapy alone doesn’t complete the restoration. A tooth that has had root canal treatment becomes more brittle over time — removal of the living pulp means it no longer receives internal moisture and nutrients. A permanent crown is almost always required to protect the treated tooth from fracture under chewing forces. Crown placement is at a separate planned appointment after confirming the root canal is successful.
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Most patients return to normal daily activities the day after treatment. Soreness when biting on the tooth typically peaks around 48–72 hours then gradually subsides. By the end of the first week, most patients are comfortable. Full healing at the root tip — resolution of any periapical lesion visible on X-ray — occurs over months; follow-up X-rays at subsequent check-ups confirm healing is progressing.
These symptoms commonly indicate pulp involvement requiring assessment. Not all tooth pain means a root canal is needed — the consultation determines what is actually occurring clinically.
Eliminates the source of tooth pain — most patients leave the appointment with significantly less discomfort than they arrived with
Saves the natural tooth — avoiding extraction and the subsequent need for an implant or bridge, which involves more treatment, more time, and generally more cost
Stops the spread of infection to adjacent teeth, bone, and surrounding tissue — an untreated dental abscess continues to cause progressive bone destruction and risks escalation
Preserves jawbone at the treated tooth site — unlike an extracted tooth, which allows bone resorption over time, reducing the bone available for future implant placement
With a proper crown, a root-canal-treated tooth can function normally for many years; long-term success rates for initial treatments are generally cited at approximately 85–95%
Post-treatment soreness is normal. Once the anaesthetic wears off, mild to moderate soreness for 2–5 days is expected — particularly when biting on the treated tooth. This is inflammation of the surrounding tissue settling, not a sign something went wrong. Over-the-counter ibuprofen is generally effective.
Success rates are high but not absolute. A small percentage of cases develop persistent or recurrent infection — sometimes manageable with retreatment or apical surgery, occasionally requiring extraction. Prognosis is discussed honestly for your specific case at the consultation.
Success rates are high but not absolute. A small percentage of cases develop persistent or recurrent infection — sometimes manageable with retreatment or apical surgery, occasionally requiring extraction. Prognosis is discussed honestly for your specific case at the consultation.
Not every tooth is a viable candidate. Teeth with vertical root fractures extending to the bone, or with severely compromised root structure, cannot be saved by root canal therapy alone. When this is the case, Dr. Al-Obaidi explains the situation directly and discusses the alternatives.
A dental infection cannot resolve on its own. Untreated, it causes progressive bone destruction and risks spreading to adjacent teeth and tissues. If you are experiencing persistent tooth pain, calling for an assessment is the right first step — not waiting to see if the pain goes away.
Eat normally before your appointment — the procedure uses local anaesthetic only and doesn’t require fasting. If you are taking antibiotics prescribed for the infection, continue the full course as directed and bring a complete medication list. Let the team know in advance if you experience high dental anxiety — adequate time can be allocated and comfort options discussed beforehand.
Root canal treatment is performed entirely under local anaesthesia — you will feel pressure, movement, and hear sounds, but sharp pain should not occur. Duration depends on the tooth: front teeth with a single canal may take 45–60 minutes; back molars with multiple curved canals can take 90 minutes or longer. After treatment, avoid chewing on the treated side where possible — particularly before the permanent crown is placed. Take ibuprofen or prescribed medication as directed.
Maintain normal brushing and flossing. Avoid very hard or crunchy foods on the treated side throughout the period between root canal completion and crown placement. If significant worsening of pain, swelling, or a persistent bad taste develops in the days following treatment, contact the clinic promptly. Follow-up X-rays at subsequent check-ups confirm healing is progressing as expected over the months following treatment.
Root canal costs vary based on several clinical factors. An accurate estimate requires an examination — the cost for your specific tooth is confirmed at the consultation and provided in writing before treatment begins.
Front teeth (incisors and canines) typically have one or two canals and are less complex. Premolars may have one or two. Molars commonly have three or four canals and are the most technically demanding due to curved roots and complex anatomy. The number of canals and complexity of the root system are the primary factors in root canal fee variation.
The consultation includes clinical examination and digital X-rays — these diagnostic components carry their own fees and are necessary for accurate treatment planning. Where significant tooth structure has been lost to decay or a large previous filling, a composite core build-up may be required before crown preparation can proceed, representing an additional procedure with its own fee.
Root canal treatment fees typically cover the endodontic procedure itself. A crown — required for most root-canal-treated posterior teeth — is a separate restorative procedure with its own fee. Both are discussed and estimated at the consultation so you have a clear picture of the full treatment investment before committing to either component.
Most Ontario dental benefit plans include partial coverage for root canal therapy and for crowns. Coverage percentages and annual maximums vary considerably by plan. Sky Dental Centre can submit a pre-determination letter to your insurer before treatment begins, so you have clarity on your expected out-of-pocket costs before making any decisions. A complete written cost breakdown is provided before any treatment commitment is made.
The crown is the essential final step after root canal therapy — particularly for molars and premolars that bear significant chewing load. Without a crown, a root-canal-treated tooth is vulnerable to fracture and potential loss. Sky Dental Centre handles both root canal therapy and crown placement, so the entire restoration pathway is managed at one clinic without referral. The crown is planned from the time the root canal is assessed.
The crown is the essential final step after root canal therapy — particularly for molars and premolars that bear significant chewing load. Without a crown, a root-canal-treated tooth is vulnerable to fracture and potential loss. Sky Dental Centre handles both root canal therapy and crown placement, so the entire restoration pathway is managed at one clinic without referral. The crown is planned from the time the root canal is assessed.
When a tooth cannot be saved — due to vertical root fracture, excessive bone loss, or structural compromise beyond what root canal therapy and a crown can address — extraction followed by a dental implant is the appropriate restorative path. Dental implant assessment and placement are available at Sky Dental Centre in-house. Where root canal therapy genuinely cannot save a tooth, the implant pathway is discussed as part of the same consultation without requiring a separate referral.
Dental infections causing significant pain, swelling, or acute abscesses frequently begin as emergency presentations. Sky Dental Centre offers same-day emergency appointments for urgent dental situations. Where an emergency assessment identifies a tooth with infected pulp that is restorable, the clinical pathway often begins with emergency root canal initiation — immediate pain relief and infection management — followed by planned completion at a subsequent appointment.
Root canal anxiety is almost entirely founded on the anticipation of pain that, with properly administered local anaesthesia, doesn’t materialise. Our trusted dentists takes the anaesthesia step seriously — including supplemental injection techniques for acutely infected teeth. The procedure doesn’t begin until the area is genuinely numb. Every root canal is preceded by appropriate radiographic evaluation of root anatomy, canal number, and surrounding bone — no surprises mid-appointment. When a tooth has a poor prognosis — due to fracture, bone loss, or structural compromise — this is communicated directly. Treatment is only recommended when the clinical picture supports a reasonable expectation of a successful outcome.
Dr. Al-Obaidi provides root canal therapy within a general practice that also manages the crown placement that follows. The restorative plan is considered from the moment the root canal is assessed — the crown is planned as part of the clinical picture from the outset, not as a separate afterthought. Root canal treatment involves working with infected tissue and requires a sterile working environment: hospital-grade instrument sterilisation, barrier protocols, and appropriate clinical technique are maintained at every appointment.
Located at 2817 Arthur St E in east Thunder Bay, Sky Dental Centre is accessible from across the city and surrounding Northwestern Ontario communities. For patients in dental pain, having a consistently reachable clinic without significant travel makes the decision to seek care promptly more practical. Currently accepting new patients for root canal therapy and all associated restorative work.
Questions patients commonly ask before and after root canal treatment. If yours isn’t here, call the clinic — we’re happy to answer before you book.
Root canal therapy is performed under local anaesthesia — you should feel pressure, vibration, and movement during the procedure, but not pain. The pain patients associate with root canals is typically the toothache from the infection that precedes treatment, not the procedure itself. What the root canal does is end that pain. Dr. Al-Obaidi takes the anaesthesia step seriously, including supplemental techniques for acutely infected teeth where standard anaesthesia can be less effective. The procedure does not begin until you are genuinely comfortable.
In most cases where a tooth is structurally sound enough to restore, root canal therapy is the more clinically conservative choice — it saves the natural tooth, preserves the surrounding bone, maintains bite alignment, and avoids the need for replacement. Extraction followed by implant or bridge placement involves more treatment, more time, and generally more cost than preserving the original tooth. However, when a tooth has a poor prognosis — due to vertical root fracture, advanced bone loss, or structural compromise that can’t be restored — extraction may be the appropriate clinical recommendation. This decision is made after a thorough examination and honest assessment.
Root canal costs vary based on which tooth is being treated. Front teeth with one or two canals are less complex — and priced differently — than back molars with three or four curved canals. Additional cost factors include the diagnostic X-rays, any required core build-up, and the subsequent crown placement. A complete written cost estimate is provided at the consultation before any treatment begins. Most Ontario dental benefit plans include partial coverage for both root canal therapy and crown placement — a pre-determination letter to your insurer can be arranged before treatment to clarify your expected coverage.
No. Antibiotics manage the systemic spread of infection and can reduce symptoms temporarily, but they do not eliminate the source — the infected pulp tissue inside the tooth. Once the pulp is irreversibly damaged or necrotic, no medication can restore it. Without removing the infected tissue and sealing the canal system, the infection will persist, continue to cause bone destruction, and can recur even if antibiotics produced temporary improvement. Antibiotics are an adjunct to dental treatment in certain situations, not a substitute for it.
For most posterior teeth — premolars and molars — yes. Root-canal-treated teeth lose their internal moisture source and become more brittle over time, making them vulnerable to fracture under chewing forces without crown protection. The crown is what determines whether the investment in root canal therapy lasts long-term. Front teeth in some cases may be restored with a filling rather than a crown, though this depends on how much natural tooth structure remains. This is discussed at the treatment planning stage for your specific tooth.
SERVING THUNDER BAY
Sky Dental Centre is located at 2817 Arthur St E, Thunder Bay, Ontario, P7E 5P5 — in the east end of the city, accessible from across Thunder Bay including Current River, Vickers Heights, Westfort, McIntyre, and communities throughout Northwestern Ontario.
Dental emergencies are unplanned by definition. When they happen — at night, on a weekend, or in the middle of a working day — knowing who to call and where to go matters. Sky Dental Centre provides same-day emergency appointments and can triage your situation by phone to advise on urgency and prepare appropriately for your arrival.
Sky Dental Centre is currently accepting new patients for both emergency and routine care. If you’re in dental pain or have experienced a dental injury, call the clinic directly rather than waiting to see if it resolves.
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