Root canal or implant: what's the difference?

If you’ve been told you need treatment on a damaged or painful tooth, you’re probably weighing up your options. The decision between a root canal and an implant can feel confusing, especially when you’re already uncomfortable. Both are effective, well-established treatments, but they do very different things.

A root canal aims to save your natural tooth by treating infection inside it. A dental implant replaces a tooth that’s already missing or can’t be saved. The right path depends on what’s happening with your specific tooth, its root, and the bone and gum tissue around it.

Your tooth and its root: a quick anatomy refresher

The part of your tooth you can see is the crown, covered in enamel. Beneath that sits dentine, and deep inside is the pulp, a soft tissue containing nerves and blood vessels. The root anchors your tooth into the jawbone.

Infection typically reaches the pulp through deep decay, cracks, trauma, or old fillings that have broken down. Once the pulp is inflamed or infected, you’ll usually know about it. The condition of the root and surrounding bone plays a big role in whether the tooth can be kept or needs to come out.

What is root canal treatment?

Root canal treatment removes infected or inflamed pulp from inside the tooth. The internal canals are cleaned, disinfected, and sealed. The goal is to relieve pain, stop infection spreading, and preserve the tooth and its root in the jaw.

Signs that might point toward a root canal include lingering sensitivity to hot or cold, pain when biting, swelling near the gum, a persistent bad taste, or a tooth that’s darkened after an injury. If you’re experiencing a toothache, a proper assessment is the only way to know whether root canal treatment is needed.

What is a dental implant?

A dental implant is a small titanium post placed into the jawbone to act as a replacement root. Once healed and integrated with the bone, a crown is attached to restore the look and function of a natural tooth.

Implants are considered when a tooth can’t be saved due to severe decay, fracture, or recurring infection that won’t resolve. They’re also used to fill gaps where teeth are already missing, preventing neighbouring teeth from shifting and restoring chewing function. You can learn more about how dental implants work on our dedicated page.

Core differences at a glance

A root canal keeps your natural tooth in place. The internal tissue is removed and sealed, but the tooth structure and root stay. An implant requires extraction first. The tooth is removed, the site heals, and an artificial root and crown take its place.

Root canal treatment typically involves fewer steps and a shorter overall timeline. Implant treatment is staged across multiple appointments over several months, allowing time for bone integration. Neither option is universally better. The right choice depends on the clinical picture and your individual situation.

When saving the tooth makes sense

If enough healthy tooth structure remains above the gumline, the root is intact without severe fractures, and the surrounding bone and gum are stable, a root canal is often the preferred approach. Keeping your natural tooth preserves your bite, your natural feel when chewing, and usually means a shorter treatment timeline.

After root canal treatment, a dental crown is commonly recommended, particularly on back teeth. The treated tooth becomes more brittle over time, and a crown protects it against cracks from biting forces.

When replacing the tooth is the better long-term choice

Sometimes a tooth is too broken down to restore predictably. A vertical crack through the root, extensive decay below the gumline, or infection that persists despite treatment can all shift the recommendation toward extraction and replacement.

An implant provides stable chewing function once fully healed and doesn’t rely on neighbouring teeth for support. Suitability depends on bone volume, gum health, general medical history, and a commitment to ongoing oral hygiene. Smoking and certain health conditions can affect healing, so these are discussed during assessment.

What does treatment actually involve?

Root canal: what to expect

Your dentist examines the tooth and takes X-rays to assess the root and the extent of infection. The area is numbed for comfort. The infected pulp is then carefully removed, the canals are cleaned and shaped, and a filling material seals them. A temporary restoration may be placed before your final crown or filling at a follow-up visit.

If you’re nervous, let the team know. Sleep dentistry and sedation options are available for patients who need extra support during treatment. Treatment is paced gently with breaks when needed, and everything is explained clearly as you go.

Dental implant: what to expect

The process begins with detailed imaging to plan the implant position. If the damaged tooth is still present, it’s extracted first. The implant post is placed into the jawbone during a surgical appointment. A healing period follows, usually a few months, while the bone integrates around the implant. Once stable, an abutment and custom crown are fitted.

Timeframes vary depending on healing, bone levels, and complexity. Tenderness and swelling after surgery are normal. If anything feels unusual during recovery, contact your dentist rather than waiting it out.

Recovery and comfort: honest answers

Modern anaesthesia means both procedures are comfortable during treatment. For patients who feel uneasy, happy gas (nitrous oxide) offers a mild, fast-acting option that wears off quickly after the appointment. After a root canal, mild soreness is common for a few days. Most people return to their normal routine quickly, though temporary bite sensitivity can occur.

Implant recovery involves surgical site tenderness and some swelling. Because the treatment is staged, you’ll have a longer overall healing period. Depending on whether extraction happened at the same appointment, downtime can vary. Don’t push through unusual pain. A prompt check is always better than guessing.

How long does each treatment last?

Both root canals and implants can last many years with the right case selection and proper care. A root canal’s longevity depends on the quality of the final restoration, how much force the tooth handles daily, and whether grinding or clenching is a factor. Ongoing decay risk around the crown or filling matters too.

Implant longevity relies on healthy gums around the implant site, consistent daily cleaning, and regular professional maintenance. Medical and lifestyle factors that affect bone stability also play a role. Long-term success with either treatment isn’t just about the procedure itself. It’s about what happens afterwards.

Cost, value, and time

Root canal treatment plus a crown is generally a lower upfront cost than an implant. Implant treatment involves surgical components, custom parts, and multiple stages, making it a larger financial commitment.

Time investment differs too. Root canal treatment is often completed over two to three visits. Implant treatment spans several months from start to finish. Flexible payment options can help you plan treatment at a pace that works for your budget.

Choosing what's right for your tooth

If the tooth and its root can be predictably restored, a root canal preserves what you already have. If the tooth can’t be saved, an implant provides a strong, natural-looking replacement. You’re not expected to figure this out on your own. A thorough assessment and clear, honest advice from your dentist make the decision much simpler. If you’re unsure where to start, book a consultation and we’ll talk through your options together.

Common questions

Can I choose an implant instead of a root canal?

Sometimes, yes. But if a tooth has a good chance of being saved predictably, preserving it is usually considered first. Extraction is irreversible, and natural teeth have advantages that implants can’t fully replicate. The choice should be guided by prognosis, not just preference.

Do I always need a crown after a root canal?

Back teeth almost always benefit from a crown because they handle strong biting forces. Front teeth may not always need one, depending on how much tooth structure remains. Your dentist will recommend what’s appropriate based on the tooth’s position and condition.

What if a root canal fails later?

Re-treatment is sometimes possible. If the tooth still can’t be saved, extraction and replacement options, including an implant, would be discussed at that point.

Am I suitable for an implant?

Suitability depends on gum health, bone volume, oral hygiene habits, and your medical history. If bone loss is present, options to address it may exist. These details are assessed confidentially during a consultation.