Root Canal Treatment: What Should You Expect and Why It Saves Teeth

Root canal treatment has a reputation that doesn’t match what the procedure actually involves today. It’s a treatment designed specifically to save a tooth that would have to be extracted otherwise — understanding what it actually does, and why, makes the reputation easier to set aside.

What Root Canal Treatment Actually Is

Inside every tooth, beneath the enamel and dentine, is the pulp — soft tissue containing nerves and blood vessels. When the pulp becomes infected or inflamed — from deep decay, a crack, or repeated treatment on the same tooth — it can’t heal on its own the way other tissue in the body might.

Root canal treatment removes this infected or inflamed pulp, cleans and shapes the canal system inside the root, and seals it to prevent bacteria from re-entering. The tooth itself stays in place — this is what distinguishes it from extraction, and why it’s the option considered first when a tooth can be saved this way.

Signs You May Need One

• Lingering pain to hot or cold that continues well after the trigger is removed, rather than easing within seconds
• Pain when biting or applying pressure to a specific tooth
• Gum swelling close to a particular tooth
• Discolouration of a single tooth, darkening compared to the teeth around it
• A dental abscess — a pocket of infection at the tooth’s root, which can cause swelling, throbbing pain, or a bad taste

Some teeth needing root canal treatment show none of these signs and are only identified on an X-ray during a routine check-up, which is one reason regular exams matter even without obvious symptoms. If you’re noticing any of the above, it’s worth having it assessed rather than waiting to see if it resolves.

Is It Painful? What to Expect

The procedure itself is carried out under local anaesthetic, which manages discomfort during treatment. Individual experiences vary, and some people feel more of the process than others despite anaesthetic, which is worth discussing with your dentist if you’re anxious about it.

The reputation root canal treatment has for being painful largely predates modern anaesthetic technique and equipment. In practice, root canal treatment addresses pain that’s already present from the infection itself. For many patients, the procedure relieves the pain that brought them in rather than causing new pain during treatment.

Afterwards, some soreness around the tooth for a few days is a normal part of healing, similar to what follows other dental procedures, and is managed with over-the-counter pain relief as directed. Severe pain, worsening, or accompanied by swelling after treatment isn’t part of normal healing and is worth contacting your dentist about.

The Treatment Step by Step

Diagnosis. An exam, including an X-ray, confirms the pulp is infected or inflamed and identifies the extent of the problem before treatment begins.

Access. Local anaesthetic is administered, and a small opening is made in the top of the tooth to reach the pulp chamber and canals. A rubber dam — a thin sheet isolating the tooth from the rest of the mouth — is used to keep the area clean and dry during treatment.

Cleaning. The infected or inflamed pulp is taken out, and the canals are cleaned and shaped using fine instruments. This is the core of the procedure; the source of infection is removed from the inside of the tooth.

Filling. Once cleaned, the root canals are filled with a biocompatible material and sealed to reduce the risk of bacteria entering the canals again. Depending on the complexity of the case, this may happen in the same appointment or a follow-up visit.

Crown protection afterwards. A tooth that’s had root canal treatment is more prone to fracture over time, since it no longer has the same blood supply keeping it resilient. A crown is recommended, particularly for back teeth that take more biting force, to protect the tooth going forward. Skipping this step increases the risk of the tooth cracking later, even though the root canal treatment itself was successful.

Root Canal Versus Extraction

When a tooth’s pulp is infected, there are two ways to address it: save the tooth with root canal treatment, or remove it with extraction.

Root canal treatment keeps the natural tooth in place. This preserves your natural bite, avoids the additional treatment needed to replace a missing tooth (such as an implant or bridge), and maintains the bone and gum structure that’s supported by having a tooth in that position.

Extraction removes the tooth and the infection along with it, in a single procedure. This is considered when the tooth is too damaged to restore even after root canal treatment — extensive decay, a fracture below the gum line, or insufficient healthy tooth structure remaining. If a tooth is extracted, replacing it is worth discussing, since a gap can affect the surrounding teeth and bite over time.

Which option applies depends on the specific tooth, assessed through an exam and X-ray — this isn’t a choice that can be made from symptoms alone, and your dentist will talk through what applies to your situation rather than defaulting to one option.

Frequently Asked Questions

Is root canal treatment as painful as its reputation suggests?

The reputation mostly predates modern anaesthesia. Local anaesthetic manages discomfort during the procedure, and for many patients it relieves pain that was already there rather than causing new pain. If you’re anxious about it, raise that with your dentist beforehand.

How much does root canal treatment cost?

This depends on which tooth is affected, how complex the case is, and whether a crown is needed afterwards — cost varies by case rather than being a single fixed figure. Your dentist can provide an accurate cost after an assessment.

How long does a tooth last after root canal treatment?

This varies depending on the tooth, whether a crown is placed afterwards to protect it, and individual factors like bite force and oral hygiene. A crown significantly reduces the risk of the tooth fracturing later, which is why it’s recommended rather than optional.

Can a tooth that’s had root canal treatment get infected again?

Yes, this is possible if bacteria re-enter the tooth — through a cracked filling, a delayed crown, or new decay, for example. This is part of why follow-up care and a crown where recommended matter, and why any new pain in a treated tooth is worth having checked.

Is extraction better than root canal treatment?

Neither is universally better — they’re different options for different situations. Root canal treatment preserves the natural tooth where that’s possible; extraction is considered when the tooth can’t be reasonably saved. Which applies to your tooth is determined by an exam rather than a general preference for one over the other.

Root Canal Treatment in Leederville

If you’re experiencing tooth pain or have been told you may need root canal treatment, we’re happy to assess your tooth and talk through what’s involved.

At Dentists on Vincent Leederville, we offer a calm, considered approach for patients who feel anxious about treatment.

Call (08) 9242 4400 or make an appointment online. Visit us at 322 Vincent St, Leederville.

Any surgical or invasive procedure carries risks. Before proceeding, consider seeking a second opinion from an appropriately qualified health practitioner.

PARKING/PUBLIC TRANSPORT

There is ample car parking across the road from the practice

There are cafes and eateries within walking distance

LOCATION

Dentists on Vincent is located in Leederville, 14 min from Northbridge and only short stroll from Leederville Oval and Water Corporation