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Root Canal Treatment — what you should know in 2026

What a root canal really involves, why it saves a tooth that would otherwise be lost, and what to expect on pain and cost.

Written by our medical board, reviewed quarterlyUpdated 21 January 19707 min read

Why a root canal is needed

Root canal treatment, or endodontic treatment, saves a tooth whose inner pulp, the soft tissue containing nerves and blood vessels, has become infected or inflamed. This usually follows deep decay, a crack, repeated dental work or trauma. Left untreated, the infection can cause severe pain, an abscess and eventual loss of the tooth, and can spread. A root canal removes the diseased pulp, disinfects the canals and seals them, allowing the natural tooth to stay in place.

The alternative to a root canal is extraction followed by an implant or bridge, which is more invasive and usually more expensive. Saving your own tooth is almost always preferable when it is structurally sound enough to restore.

A root canal is a treatment, not an elective choice, so the priority is doing it well and promptly rather than shopping around. That said, patients sometimes have it done abroad alongside other planned dental work at lower cost.

What the procedure involves

Under local anaesthetic the dentist isolates the tooth, removes the infected pulp, and cleans and shapes the narrow canals inside the roots using fine instruments, often guided by magnification and X-rays. The canals are then disinfected and filled with a sealing material, and the access opening is closed. Modern techniques make this far more comfortable and predictable than its old reputation suggests.

Simple front teeth with one canal are quicker; molars with several canals take longer and may need more than one appointment. In some cases a temporary filling is placed between visits while the infection settles.

Because a root-treated tooth becomes more brittle, it usually needs a crown afterwards to protect it from fracture, especially a back tooth. This is an important part of the plan and its cost, not an optional extra, and should be discussed up front.

Pain, recovery and timeline

Contrary to its reputation, a root canal relieves pain rather than causing it, because it removes the inflamed nerve tissue that was hurting. The procedure itself is done under local anaesthetic and is comparable to having a filling. Afterwards the tooth and surrounding gum may be tender for a few days, especially when biting, which is managed with simple pain relief.

There is essentially no downtime; you return to normal activities the same day, eating carefully on the other side until any tenderness subsides and the final restoration is in place.

Many root canals are completed in one or two visits over a few days, which fits a single trip, with the protective crown ideally fitted before you travel home. Where the crown follows separately, your home dentist can sometimes complete it using the clinic's records.

What it costs and choosing a clinic

Root canal costs depend on the tooth: a single-canal front tooth is cheaper than a multi-canal molar. In popular destinations the treatment typically costs a low-to-mid three-figure sum in euros, often a fraction of high-cost-market prices, with the protective crown priced separately.

Because endodontics is technically demanding, look for a clinic with strong restorative or endodontic expertise, ideally a dentist who does root canals routinely, magnification and modern rotary instrumentation, and recognised accreditation such as ISO certification. X-rays, and ideally a CBCT scan for complex molars, should underpin the plan.

Confirm that the quote includes the necessary crown and follow-up, and clarify what happens if the tooth gives trouble after you return home, since a small proportion of root canals need retreatment.

Risks and what if something goes wrong

Root canal treatment has a high success rate, but it is not guaranteed. Risks include persistent or recurrent infection if a canal is missed or incompletely sealed, fracture of the brittle tooth if it is not crowned, instrument-related complications, and occasional flare-ups of pain after treatment. Very complex or curved canals are more challenging and more likely to need a specialist.

These risks are reduced by an experienced clinician using magnification and good imaging, thorough disinfection, and protecting the tooth promptly with a crown. Completing the final restoration without long delay is important to long-term success.

If the tooth remains symptomatic after you travel home, contact the treating clinic; options include retreatment, a minor surgical procedure (apicoectomy), or, if the tooth cannot be saved, extraction and replacement. Keep your X-rays and records so a local dentist can act on them.

Frequently asked

Is a root canal painful?

No. It is done under local anaesthetic and actually relieves the pain of an infected tooth. Some tenderness for a few days afterwards is normal and managed with simple pain relief.

Why do I need a crown after a root canal?

A root-treated tooth becomes more brittle and is prone to fracture, especially a back tooth. A crown protects it and is an important part of the treatment, not an optional extra, so factor it into the plan and cost.

How much does a root canal cost abroad?

It typically costs a low-to-mid three-figure sum in euros in popular destinations, often a fraction of high-cost-market prices. The protective crown is usually priced separately.

Can a root canal be done in one trip?

Often yes. Many are completed in one or two visits over a few days, ideally with the protective crown fitted before you travel home, or finished by your home dentist using the clinic's records.

What if the root canal fails?

A small proportion need retreatment or a minor surgical procedure, and rarely the tooth must be extracted. Keep your X-rays and records so any dentist can assess and treat the tooth if symptoms return.

Is a root canal better than pulling the tooth?

Saving your natural tooth is usually preferable, since extraction then needs an implant or bridge, which is more invasive and often more costly. A root canal is the conservative option when the tooth can be restored.