Root Canal vs Implant: Which Is the Better Option for Your Tooth?

When a tooth is badly damaged, infected or affected by deep decay, you may be faced with an important decision: should you try to save the natural tooth with root canal treatment, or have it removed and replaced with a dental implant?

Both treatments can provide reliable long-term results, but they solve the problem in very different ways.

A root canal is designed to save your existing tooth. A dental implant, on the other hand, is used to replace a tooth that has already been removed or cannot reasonably be saved.

For many patients, this distinction is more useful than simply asking which treatment is “better”. The right choice depends on how much healthy tooth structure remains, the condition of the surrounding bone and gums, the presence of cracks or infection, your general health and your long-term treatment goals.

Root Canal vs Implant at a Glance

Root canal treatment is designed to preserve your natural tooth by removing infected or inflamed pulp from inside the tooth. It is usually less invasive than implant treatment and can often be completed in a shorter timeframe. Depending on how much healthy tooth structure remains, a crown may be needed afterwards to protect and restore the tooth.

A dental implant, on the other hand, replaces a tooth that has already been extracted or cannot be saved. The implant is surgically placed into the jawbone and later restored with a dental crown. Because healing and integration with the bone take time, implant treatment may take several months from start to finish.

Both treatments can have high survival rates, and current evidence does not establish one as the universally better option. The decision needs to be made according to the condition of the individual tooth and the patient’s circumstances.

What Is Root Canal Treatment?

Root canal treatment, also known as endodontic treatment, is used to save a tooth when the pulp inside it has become inflamed, infected or irreversibly damaged.

The dental pulp is the soft tissue inside the tooth containing nerves, blood vessels and connective tissue. It can become damaged because of deep decay, cracks, trauma, repeated dental procedures or infection.

During root canal treatment, the dentist removes the affected pulp, cleans and disinfects the inside of the tooth, and fills and seals the root canal system. The aim is simple: remove the source of infection or inflammation while keeping as much of your natural tooth as possible.

The Australian Dental Association identifies saving a badly damaged or infected tooth as the main purpose of root canal treatment.

Will I Need a Crown After a Root Canal?

Not every root canal-treated tooth requires exactly the same restoration.

However, teeth that have lost substantial structure, particularly molars and premolars exposed to significant chewing forces, often require a crown or another protective restoration afterwards. This helps restore the tooth’s function and reduces the risk of the remaining tooth structure fracturing.

Your dentist will assess how much healthy tooth remains before recommending the most appropriate restoration.

What Is a Dental Implant?

A dental implant replaces the root of a missing tooth.

The implant itself is usually a titanium fixture surgically positioned in the jawbone. After healing, a dental crown can be attached to the implant to replace the visible portion of the missing tooth.

Unlike root canal treatment, an implant does not save the affected tooth. The natural tooth must either already be missing or be extracted before it can be replaced.

Implants can be an excellent option when a tooth is too damaged to restore predictably, has a severe fracture, has insufficient healthy structure remaining, or has otherwise reached the point where keeping it is no longer considered a reliable option.

Benefits of Saving a Tooth With Root Canal Treatment

When a tooth can be predictably restored, root canal treatment has several advantages.

You Keep Your Natural Tooth

This is perhaps the most important difference between the two treatments.

Root canal treatment allows the natural tooth and its root to remain in the jaw. Although the damaged pulp is removed, the tooth can continue to function for biting and chewing once it has been appropriately restored.

The Australian Dental Association notes that preserving a natural tooth is generally preferable when it can be successfully treated and restored.

It Usually Involves Less Surgery

Root canal treatment is performed through the tooth and normally does not require extraction or surgery into the jawbone. Local anaesthetic is used to keep the area comfortable during treatment.

An implant requires a surgical procedure to place the implant into the jawbone. Depending on the individual case, additional procedures such as bone grafting may also be required.

Treatment Can Often Be Completed Sooner

Root canal treatment may require one or more appointments, followed by the final restoration if necessary.

Implant treatment typically involves a longer overall process because the implant needs time to integrate with the surrounding bone before the final restoration is completed.

Australian Healthdirect advises that it takes approximately three months for bone to grow around an implant, although treatment timelines vary considerably between patients.

It May Involve Lower Overall Treatment Costs

In many cases, saving a restorable tooth with root canal treatment and an appropriate restoration costs less than extraction followed by implant surgery and an implant-supported crown.

However, costs vary significantly according to the tooth involved, complexity of treatment, whether specialist care is required, the restoration needed afterwards and whether additional procedures are necessary.

Are There Disadvantages to Root Canal Treatment?

Root canal treatment is not suitable for every damaged tooth.

The Tooth Still Needs to Be Restorable

A root canal treats disease inside the tooth, but it cannot replace tooth structure that has already been lost.

If there is too little healthy tooth remaining, extensive decay below the gumline, certain types of root fracture, or inadequate support around the tooth, saving it may not provide a predictable long-term result.

The Tooth May Need Additional Protection

A heavily restored tooth may be more vulnerable to fracture. Depending on its location and how much structure remains, your dentist may recommend a crown or another restoration to protect it.

Root Canal Treatment Can Sometimes Fail

Although root canal treatment is successful in most cases, reinfection or other complications can occur.

An updated systematic review reported pooled primary root canal treatment success estimates of approximately 82% under strict criteria and 92.6% under less strict criteria, although outcomes vary according to clinical factors and definitions of “success”.

If problems develop, retreatment or endodontic surgery may sometimes save the tooth. In other cases, extraction may eventually become necessary.

When Might a Dental Implant Be the Better Option?

A dental implant becomes particularly relevant when saving the natural tooth is no longer predictable or possible.

This may be the case when:

• the tooth has a severe or non-restorable fracture
• extensive decay has left insufficient healthy tooth structure
• the tooth has very poor periodontal support
• previous treatment has failed and further treatment has a poor prognosis
• the tooth has already been extracted or is missing.

An implant can replace the missing tooth without relying on adjacent teeth for support.

What Are the Disadvantages of Choosing an Implant?

Dental implants are highly useful, but they should not be presented as maintenance-free replacements for natural teeth.

It Requires Surgery

Implant placement involves surgery, usually performed under local anaesthetic. Sedation may be considered in some circumstances, but it is not accurate to say that IV anaesthesia is routinely required, as the old article currently does.

Some discomfort, swelling, bruising or minor bleeding can occur during the initial recovery period.

Treatment Usually Takes Longer

After the implant is placed, the surrounding bone needs time to heal and integrate with it before the final restoration can be completed.

Some patients may also require bone grafting or other preparatory treatment, which can extend the overall timeline.

Implants Can Develop Complications

Possible complications include infection, problems with healing, nerve injury, sinus complications in certain upper-jaw cases and problems affecting the tissues around the implant.

Implants also require good daily oral hygiene and ongoing professional dental care.

Not Everyone Is an Equally Suitable Candidate

Your dentist will assess the quantity and quality of available bone, gum health, medications, medical conditions and other factors before recommending an implant.

Smoking, periodontal disease and some medical conditions can affect treatment planning and healing. Australian Healthdirect specifically identifies smoking, diabetes and gum disease among factors dentists consider before implant treatment.

Smoking is particularly relevant because newer evidence associates it with poorer implant survival and greater peri-implant bone loss.

Root Canal or Implant: Which Lasts Longer?

This is one of the most common questions patients ask. Both root canal-treated teeth and dental implants can function successfully for many years with appropriate treatment, restoration and ongoing care.

Recent systematic reviews comparing the two approaches have found high survival rates for both. Importantly, the evidence does not conclusively establish implants as superior to appropriately treated natural teeth. Some studies favour root canal-treated teeth, others favour implants, and implants can involve more postoperative interventions and complications.

Longevity depends on factors including:

• the amount of healthy tooth structure remaining
• the quality of the root canal treatment and final restoration
• gum and bone health
• oral hygiene
• smoking
• teeth grinding or excessive biting forces
• general health
• regular dental maintenance.

Rather than asking which treatment lasts longer in general, it is often more useful to ask: What is the long-term prognosis of this particular tooth if we try to save it?

That is the question your dentist can help answer after examining the tooth and reviewing the necessary X-rays or scans.

Is It Better to Save Your Natural Tooth or Get an Implant?

If a natural tooth can be predictably treated and restored, saving it is generally worth considering before extraction.

An implant is an excellent way to replace a tooth when preservation is no longer feasible, but it is still a replacement for a natural tooth rather than an upgrade to one.

The decision should therefore not be based solely on whether a root canal or implant sounds more permanent. Your dentist needs to consider the condition of the tooth, remaining tooth structure, cracks or fractures, infection, bone and gum health, previous dental treatment, your general health, expected longevity, treatment time, costs and your preferences.

In some cases, the answer will be straightforward. In others, both approaches may be reasonable and the advantages and limitations of each should be discussed before you decide.

Not Sure Whether You Need a Root Canal or Dental Implant?

If you have been told that a badly damaged or infected tooth may need root canal treatment or extraction, getting a thorough assessment can help you understand whether the tooth can still be saved.

The dental team at MGA Dental can assess the affected tooth, explain its prognosis and discuss suitable treatment options, including root canal treatment, extraction and dental implants where appropriate.

With clinics in Brisbane and on the Gold Coast, MGA Dental provides restorative and emergency dental care seven days a week.

Rather than waiting for pain or infection to become more severe, book an appointment with MGA Dental to have the tooth assessed and discuss the treatment option that best protects your long-term oral health.