Root canal treatment: how it helps, what it costs, and how WINZ can help

How a root canal helps your oral health

A root canal treats a tooth from the inside. In the centre of every tooth is soft tissue called the pulp. When deep decay, a crack or an injury lets bacteria reach the pulp, it can become infected and inflamed. That causes ongoing pain, and the infection can spread into the bone around the root. Root canal treatment removes the infected tissue, cleans and shapes the canals, then seals them. The outer tooth stays in place and keeps doing its job.

Keeping your own tooth has real benefits. It holds your natural bite, keeps the neighbouring teeth from drifting, and keeps the root working in the jaw, which helps maintain the surrounding bone. It also treats the source of the infection rather than leaving it to worsen. Treatment is carried out under local anaesthetic, so the tooth is numb, and many people find it feels much like having a filling done.

1. 1/Clears the infection and eases the pain it causes
2. 2/Keeps your natural tooth and your normal bite
3. 3/Helps hold neighbouring teeth in position
4. 4/Avoids the gap left behind by taking a tooth out

Root canal, extraction, or doing nothing

When a tooth is badly infected there are usually three paths. A root canal keeps the tooth. An extraction removes it. Leaving it alone is not a safe option, because the infection can grow, form an abscess, and affect your wider health. Your dentist will look at your tooth and talk through what suits it, as not every tooth can be saved.

An extraction can look cheaper on the day, often around $250 to $350 for a straightforward tooth. It is worth weighing up the longer picture though. A gap can let nearby teeth tilt and change your bite, and replacing the tooth later with a bridge or an implant usually costs more than the root canal would have. For many people, keeping the natural tooth is the more practical choice.

What root canal treatment costs in New Zealand

There is no single national fee for a root canal in New Zealand, and prices vary between practices and from tooth to tooth. Fees reported across the country commonly range from around $700 for a simpler front tooth to around $2,500 for a complex back tooth. Front teeth usually have one canal and sit at the lower end. Molars can have three or four canals, take longer, and cost more.

A tooth that has had a root canal often needs a crown afterwards to protect it from cracking. A crown is a separate cost, commonly around $1,200 to $2,500. That means the full pathway for a back tooth, treatment plus a crown, can add up to a few thousand dollars. Dental fees have also risen in recent years, so it is worth getting a current written quote rather than relying on an old figure. We give you a written quote before any treatment begins.

Can you have a root canal with a WINZ quote?

In some cases, yes. If you are on a low income or a benefit, Work and Income may help with up to $1,000 in any 52 week period for immediate and essential dental treatment, and if you meet the criteria this grant does not have to be paid back. To use it, you need a quote from a Work and Income registered dentist on their Emergency Dental Treatment form, which you then take to Work and Income. We can examine the tooth and complete that form and quote for you.

It helps to know what the grant usually covers, so there are no surprises. Work and Income generally helps with urgent problems such as extractions, fillings, gum infections, and root canals on front teeth. It does not usually fund crowns, or root canals on back teeth. The $1,000 limit may also not stretch to a full root canal and a crown on its own. So a WINZ quote can be a real help, particularly for a front tooth, and we will be clear about any remaining cost before you decide.

1. 1/Usually helped with: extractions, fillings, front tooth root canals, gum infection treatment
2. 2/Usually not funded: crowns, back tooth root canals, routine check-ups, cosmetic work

Ways we help with the cost

We try to keep the first step simple and clear. Your first exam with digital X-rays is $79, and you get a written quote before any treatment goes ahead. If your tooth needs treatment because of an accident or injury rather than decay, ACC may cover part or all of it, and we can lodge that claim for you. Where you qualify for Work and Income help, we complete the quote and form for you as well.

To make treatment more manageable, we can talk you through ways to spread the cost, and we can process Southern Cross Easy-Claim where it applies. We are at the Auckland Airport Shopping Centre with free parking at the door, we are open on Sundays, and we take extra care with patients who feel nervous. If you are in pain or unsure about a tooth, phone 09 964 0508 or text 022 852 4000 and we will help you work out the next step.

Quick questions

Does a root canal hurt?

The tooth is numbed with local anaesthetic during treatment, and many people find it feels similar to having a filling. Some tenderness for a day or two afterwards is normal.

How long does a treated tooth last?

A tooth that is treated well and properly restored, often with a crown, can last many years and frequently for life with good daily care. No dentist can promise a tooth will last forever.

Is it better to just pull the tooth out?

Sometimes an extraction is the right call, but keeping your natural tooth usually protects your bite and avoids the cost of replacing it later. Your dentist will talk through both options with you.

Will WINZ pay for my root canal?

It depends on your eligibility and which tooth it is. Work and Income may help with up to $1,000 a year for urgent treatment and generally covers front tooth root canals, but not crowns or back tooth root canals. We can prepare a quote for you to take to Work and Income.