Root canal treatment has a reputation that has not kept up with reality. For most patients, the procedure is a lot more comfortable than they expect, and the relief from finally treating an infected tooth far outweighs the experience itself.
Root canal treatment (sometimes called root canal therapy or RCT) is one of the most effective ways to save a tooth that would otherwise need to be removed. At Bellevue Hill Dental, we perform root canal treatment under local anaesthetic, with sedation options available for patients who would prefer to feel more relaxed during the procedure.
What is root canal treatment?
Inside every tooth is a soft tissue called the pulp, which contains nerves and blood vessels. When the pulp becomes infected or inflamed due to deep decay, a crack in the tooth, or trauma, root canal treatment removes the infected tissue, cleans and seals the root canals, and restores the tooth so it can continue to function normally.
Without treatment, a pulp infection spreads through the root tip into the surrounding bone, forming an abscess. This can cause significant pain and, if left untreated, may result in tooth loss and spread of infection to neighbouring structures.
Signs you may need root canal treatment
- Severe, persistent toothache — particularly pain that throbs or worsens when lying down
- Prolonged sensitivity to hot or cold that doesn’t resolve after the stimulus is removed
- Tooth discolouration — a darkening tooth often indicates pulp death
- Swelling or tenderness in the gum near the tooth
- A small pimple or bump on the gum (dental abscess or sinus tract)
- Pain when biting or applying pressure to the tooth
- A tooth that was painful and has suddenly gone quiet — pulp death can temporarily stop pain before an abscess develops
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When to seek emergency care If you have facial swelling, difficulty swallowing or breathing, or fever alongside tooth pain, seek emergency medical care. These are signs of a spreading dental infection requiring urgent treatment. |
Root canal treatment — step by step
Step 1 — Assessment and X-rays
Your dentist takes dental X-rays (and sometimes a CBCT scan) to assess the extent of infection, the number and shape of root canals, and the condition of the surrounding bone. This determines the complexity of treatment.
Step 2 — Local anaesthetic
The area around the tooth is fully anaesthetised. For anxious patients, oral sedation or nitrous oxide (happy gas) is available. Twilight sedation can be arranged for complex cases or severe dental anxiety.
Step 3 — Access and pulp removal
A small opening is made through the crown of the tooth. The infected pulp tissue is removed from the pulp chamber and each root canal using specialised instruments.
Step 4 — Cleaning and shaping
The root canals are cleaned, shaped, and disinfected using a combination of hand files, rotary instruments, and antibacterial irrigation solutions. This step eliminates bacteria from the canal system.
Step 5 — Canal sealing
The cleaned canals are filled with a biocompatible material (gutta-percha) and sealed with an adhesive cement to prevent re-infection.
Step 6 — Restoration
A root canal-treated tooth is more brittle than a vital tooth and requires a crown in most cases to protect it from fracture under biting forces. Your dentist will discuss the most appropriate restoration at your treatment appointment.
Is root canal treatment better than extraction?
In most cases, saving your natural tooth is the better long-term option. A natural tooth keeps the surrounding bone healthy, holds its neighbours in position, and gives you a stronger bite than most replacement options.
The exception is when the tooth is too damaged to save through major decay, a fracture, or significant bone loss. In those situations, removing the tooth and replacing it with an implant or bridge may be the better outcome. Your dentist will talk you through both paths, including the cost, time, and clinical considerations, at your consultation.
It’s also worth knowing that root canal treatment, while highly successful, is not always permanent. A small percentage of teeth need retreatment down the track if the infection returns, which is why ongoing dental care after treatment matters.
Root canal cost: What to expect
The cost of root canal treatment varies depending on which tooth is involved and how complex the treatment is. In general:
- Front teeth (single canal) are the most straightforward and the most affordable option
- Premolars (two canals) sit in the middle range
- Molars (three to four canals) take longer and are at the higher end
- Retreatment of a previous root canal is usually quoted on a case-by-case basis
- A crown is recommended for most teeth after root canal treatment. This is a separate cost worth factoring in
Private health insurance extras typically cover part of the cost. Bellevue Hill Dental is a preferred provider for several major health funds, so out-of-pocket costs can be lower for some patients. Ask our reception team when booking.
Afterpay is available to help spread the cost into manageable instalments, and we will provide a tailored quote at your consultation.
Root canal near Bellevue Hill — suburbs we serve
We provide root canal treatment to patients from across Sydney’s Eastern Suburbs, including Bellevue Hill, Woollahra, Double Bay, Rose Bay, Paddington, Bondi Junction, Bronte, Clovelly, Randwick and surrounding areas.
Frequently Asked Questions
What problem does a root canal actually fix?
It treats infection or inflammation of the tooth nerve (pulp), often caused by deep decay that lets bacteria reach the nerve. The aim is to remove the infection and seal the tooth to stop it spreading.
What symptoms suggest the nerve might be involved?
The clinic lists severe or pressure-type pain, lingering hot/cold sensitivity, tooth discolouration, swollen/tender gums, pain on chewing, and a bad taste or breath.
Why choose a root canal instead of an extraction?
A root canal is designed to save the remaining tooth structure and help protect neighbouring teeth; extraction is considered when saving the tooth isn’t feasible.
Will I be comfortable during treatment?
Yes—your dentist numbs the area with local anaesthetic to minimise discomfort while the infected pulp is treated.
How many visits does it take and what are the key steps?
The clinic notes most cases take two to three visits: numbing, removal of infected pulp, shaping/cleaning the canals, then sealing and filling the tooth.
Why might I need a crown afterwards?
After the canals are sealed and the tooth is filled, a crown is usually recommended to protect and strengthen the tooth.
How soon can I get back to normal?
Most people resume normal activities within a few days, although recovery time varies by case. Follow your dentist’s after-care instructions.
What happens if I ignore an infected tooth?
The infection can worsen, making chewing difficult and potentially spreading to other teeth, bone, or jaw tissues.
What is “obturation” in plain English?
It’s the step where the cleaned canals are sealed to keep bacteria out after the infected tissue has been removed—an important part of completing the root canal.
What if the canal is calcified or hard to access?
Calcified canals can be more complex; the team assesses these carefully and uses appropriate techniques/equipment. Their guidance notes that expertise and the right tools are important for such cases.
How should I prepare for the appointment?
Their preparation advice includes being well-rested and following any instructions provided; if sedation is planned, arrange transport home.
How do you decide if a root canal is required now or can wait?
Milder pulp inflammation may be managed with preventive/restorative care, but severe inflammation often needs root canal therapy to save the tooth. Your dentist will advise after assessment.