Root Canal vs Extraction: Weighing Up Your Options

If you've just been told a tooth might need a root canal or an extraction, you're probably turning the decision over in your head. Both options fix the problem, but they lead you down very different paths. At Two Rocks Dental Care, we sit down with you, explain what's going on with the tooth, and talk through both choices so you can decide what feels right for you.

This article walks through how we weigh up root canal vs extraction, what each option actually involves, and what happens to the space afterwards if a tooth does need to come out. There's no one right answer for every tooth. It depends on the tooth itself, where it sits in your mouth, and what matters most to you.

What's the difference between a root canal and an extraction?

A root canal, sometimes called root canal therapy, is a treatment that cleans out the infected or inflamed tissue inside a tooth. The inside of the tooth is cleaned, shaped and sealed, then the tooth is usually protected with a filling or crown. The tooth itself stays in your mouth.

An extraction is the removal of the whole tooth. Once it's out, the infection or damage goes with it, but you're left with a gap that may need attention down the track.

Both are common procedures. Neither is right or wrong on its own. The best choice depends on how much healthy tooth structure is left, where the tooth is, and what you want for your mouth long term. Our root canal therapy page has more detail on how we approach saving a tooth when that's the better path.

Root canal vs extraction: pros and cons

Why you might choose a root canal

• It keeps your own tooth in place, along with its root and the bone support around it.
• Chewing and biting usually feel more normal than with a missing tooth, because nothing has changed shape in your mouth.
• Neighbouring teeth are less likely to drift or tilt into a gap, since there's no gap to drift into.
• It often means one less decision to make afterwards, since there's no gap to plan for.

The trade-off is that a root canal can take more than one visit, and a tooth that's been treated this way usually needs a crown, onlay or filling afterwards to protect it from cracking. Not every tooth can be saved this way either. If too much of the tooth structure is gone, or the crack runs below the gum line, a root canal may not give a result that lasts.

Why you might choose an extraction

• It's a quicker way to deal with a tooth that's too damaged, cracked or infected to restore.
• It removes the source of infection completely in one visit.
• It can be the more practical option if the tooth has very little structure left or the bone around it is badly affected by gum disease.

The trade-off here is the gap it leaves behind. Over time, the teeth next to and opposite the gap can shift, tip or over-erupt, which can change your bite. The jawbone under the missing tooth can also shrink a little over the following months, since it no longer has a tooth root keeping it stimulated. That's why most dentists talk to you early about what, if anything, you'd like to do about the space.

Root canal vs extraction for a molar

Molars do extra work every time you chew, so the decision can feel a bit bigger here. A back tooth with a root canal generally needs a crown afterwards, because molars take heavy biting forces and the tooth is more likely to crack without that extra protection.

If a molar is extracted instead, the gap is further back in the mouth, so it's less noticeable when you smile. That doesn't mean it's less important to address. Back teeth do a lot of the chewing, and losing one can shift the balance of your bite more than people expect. We'll talk you through whether saving the molar is realistic, or whether extraction and a plan for the space makes more sense for that particular tooth.

If the tooth comes out, what happens to the gap?

This is often the part people haven't thought about yet when they're first weighing up root canal vs extraction. Once a tooth is gone, you generally have a few paths open to you, and we'll explain each one honestly, with its own pros and cons, rather than pushing you towards any single option.

Leaving the gap as it is

For some back teeth, especially if you've already lost the tooth opposite it, leaving a small gap can be a reasonable choice. It's worth knowing that neighbouring teeth may still shift over time, so it's something to keep an eye on at your regular check-ups.

A dental implant

A dental implant replaces the tooth root with a small titanium post, topped with a crown. It's fixed in place and doesn't rely on the teeth next to it for support. Implants need enough healthy bone to work well, and the whole process takes a few months from start to finish.

A bridge

A bridge fills the gap using the teeth on either side as anchors. It's fixed in place, usually completed faster than an implant, but it does mean shaping the neighbouring teeth to hold it.

A denture

A partial denture is a removable option that can replace one or several missing teeth. It's usually the least invasive and most affordable way to fill a gap. We also offer implant-retained dentures for people who want more stability than a standard denture gives.

We talk through all of these with you at the time, including what's realistic for your particular gap, so you can make the choice that suits your mouth and your life.

How we help you decide

At Two Rocks Dental Care, we start with a proper look at the tooth, usually including an X-ray so we can see what's happening below the gum line. If we need a wider view of your mouth, we can take an OPG X-ray on site, so you're not sent elsewhere for extra imaging.

From there, we'll explain what's realistic for that tooth: whether it's a good candidate for root canal therapy, or whether extraction gives you a better long-term result. We'll cover the pros and cons of each in plain language, answer your questions, and give you a written quote with item numbers so you know exactly what's involved. If you're with HBF, HCF or nib, we're a preferred provider for those funds, which usually means a smaller gap to pay, though it's never free. You can check your own policy for the details.

Day to day general dentistry, including check-ups and the X-rays that help us plan treatment, is covered on our general dentistry page if you'd like to read more before you come in.

Frequently asked questions

Is root canal or extraction better for a molar?

It depends on how much healthy structure is left and whether the crack or infection can be fully treated. A molar with enough sound structure can often be saved with a root canal and crown. One with a deep fracture or extensive decay may do better coming out, with a plan made for the space afterwards.

Root canal treatment generally costs more upfront than an extraction, but an extraction can lead to extra costs later if you choose to replace the tooth with an implant, bridge or denture. We give you a written quote either way, so you can compare the full picture rather than just the first step.

Does it hurt more to have a root canal or a tooth pulled out?

Both are done with local anaesthetic, so you shouldn't feel the procedure itself while it's happening. Afterwards, some people find an extraction site is a bit more tender for a few days, while a root canal tooth can feel sensitive to bite on for a short while. Everyone's experience is a little different, and any pain relief should follow the directions on the pack or your pharmacist's advice.

What happens if I leave an infected tooth untreated?

An infection inside a tooth doesn't go away on its own and can spread to the bone or surrounding tissue over time. If you notice spreading facial swelling, a fever, trouble breathing or swallowing, or bleeding that won't stop, that's a reason to go straight to a hospital emergency department rather than waiting for a regular appointment.

Can I get a root canal and then still need the tooth extracted later?

Occasionally, yes. If an infection comes back or the tooth develops a new crack, extraction might still be needed down the track. This isn't common, but it's worth knowing it's a possibility rather than a guarantee that a root canal fixes things forever.

Working out whether a tooth is worth saving isn't something you should have to figure out alone. If you're weighing up root canal vs extraction for your own tooth, come and see our team at Two Rocks Dental Care. We're family run and local to Two Rocks, Yanchep and the rest of Perth's northern coast, so you don't need to drive down to Joondalup to sort it out. We're based inside the Jupiter Health Two Rocks Medical Centre at 6 Constellation Entrance, Two Rocks, with our own dental entrance and parking right outside. Call us on (08) 9502 9040, check our new patients page if it's your first visit, or book an appointment online and we'll help you work out the best way forward for your tooth.