How long does a root canal take? Here’s what you need to know

Posted by on Jun 16, 2025 in Dental Health | 0 comments

How long does a root canal take? Here’s what you need to know

If your dentist has told you that you need a root canal, one of your first questions might be how long the entire process will take. Is it something that can be completed over lunch, or will it require multiple visits? The answer depends on several factors, including the condition of your tooth and the complexity of the treatment.

In this article, we’ll walk you through how long a root canal usually takes, what happens during the procedure, and what factors might make it quicker or longer. You’ll also learn why root canal treatment is so important for saving your natural tooth and protecting your oral health.

What is a root canal, and why might you need one?

How Long Does a Root Canal Take stepsA root canal is a dental procedure designed to save a tooth that has become infected or inflamed in the pulp—the soft tissue inside the tooth that contains nerves, blood vessels, and connective tissues. Infection can occur due to deep decay, repeated dental procedures, trauma, or a cracked tooth.

You might need a root canal if you experience any of the following:

  • Tooth pain that doesn’t go away
  • Throbbing pain when chewing
  • Sensitivity to hot or cold substances
  • Swollen or tender gums near the affected tooth
  • Darkened or discolored tooth

If left untreated, the infection can spread to the surrounding area, including other teeth, and lead to more serious oral health issues.

How long does a root canal take on average?

The time it takes to complete a root canal depends on several things, such as which tooth is affected, how severe the infection is, and whether the treatment is done by a general dentist or an endodontist (a specialist in root canal procedures).

For front teeth

Front teeth, like incisors and canine teeth, usually have a single root. These root canal procedures are the simplest and often take between 30 and 60 minutes to complete. Most can be done in a single visit.

For premolars

Premolars typically have one or two roots. A root canal for these teeth usually lasts around 60 to 90 minutes. Depending on the complexity, it might require one or two visits.

For molars

Molar teeth are the most complex, with two or more roots and several canals. These procedures often take 90 minutes or more and usually need two visits to complete.

 

 

Why some root canals need more than one visit

While some root canals can be finished in a single visit, many require two. During the first visit, the infected pulp is removed, the canals are cleaned, and a temporary filling is placed. In the second visit, the canals are filled with a biocompatible material, and the tooth is sealed permanently. If a crown is needed, it may be placed during this follow-up appointment.

Here are a few reasons why multiple visits may be necessary:

  • Severe infection or swelling in the tooth
  • Complicated tooth anatomy, such as curved or narrow canals
  • The need for medication to be placed in the canals between visits
  • Use of a temporary filling while the infection resolves

A closer look at the root canal procedure

Step 1: Diagnosis and preparation

Your dentist will begin by examining the affected tooth. X-rays will help show the condition of the tooth’s pulp and surrounding soft tissue. This step confirms the presence of infection or inflamed pulp.

Step 2: Local anesthesia and dental dam

To keep you comfortable, the dentist will numb the area around the tooth with local anesthesia. A small sheet called a dental dam is used to keep the tooth clean and dry throughout the procedure.

Step 3: Removing the infected pulp

A small opening is made in the crown of the tooth so the dentist can access the pulp inside. Using specialized instruments, the infected pulp and any remaining bacteria are carefully removed.

Step 4: Cleaning and shaping the canals

The empty canals are cleaned and shaped to prepare them for filling. This step ensures that all infected tissue is removed and the space is ready for sealing.

Step 5: Filling the canals

After cleaning, the canals are filled with a rubber-like, biocompatible material. This prevents further infection and helps reinforce the tooth’s structure. The dentist may place a temporary filling if a permanent restoration is planned for a second visit.

Step 6: Final restoration

Once the canals are sealed, the tooth is restored with a permanent filling or crown. A crown is often recommended for molar teeth to provide extra strength and protection.

What can affect how long your root canal takes?

There are a few key factors that can influence how long a root canal appointment may last:How Long Does a Root Canal Take procedure

  • The type of tooth being treated. Molars take longer than front teeth.
  • How severe the infection is. A severe infection may require additional cleaning or medication.
  • The tooth’s structure. Teeth with one or two roots are simpler than those with multiple or curved canals.
  • The skills and tools of your dentist or endodontist. Specialists with experience and advanced tools may complete the treatment more efficiently.
  • Whether you need a same-day crown. In some cases, a crown can be placed immediately, while in others, it requires a separate appointment.

What to expect after a root canal

Most patients experience mild discomfort after root canal treatment. This is usually temporary and can be managed with over-the-counter pain relievers. Your dentist may advise you to stick to soft foods for a few days and to avoid chewing on the treated tooth until your final restoration is in place.

Good oral hygiene, including brushing, flossing, and regular dental checkups, will help you maintain the health of the treated tooth and reduce the risk of needing repeated dental procedures in the future.

When should you see a dentist?

You should schedule an appointment if you have:

  • Tooth pain that lingers or worsens
  • Swollen or tender gums
  • Sensitivity to cold substances
  • Pain when biting down
  • A visible dark spot on a specific tooth

These could be signs of an infected tooth that may require root canal treatment. Addressing the issue early can prevent further complications and save your natural tooth.

Final thoughts

How Long Does a Root Canal Take consultSo, how long does a root canal take? In most cases, you can expect the procedure to last anywhere from 60 to 90 minutes, depending on the tooth and the extent of the infection. Some root canals can be completed in a single visit, while others may need two.

Although it may sound like a time-consuming dental procedure, a root canal is often the best way to save your natural tooth, relieve pain, and prevent further damage. With proper care and a final restoration, a treated tooth can last just as long as your other teeth.

If you think you may need a root canal, consult your dentist or healthcare provider. They’ll guide you through the process and help you make informed choices for your oral health and overall well-being.

References:

https://www.healthline.com/health/how-long-does-a-root-canal-take

https://my.clevelandclinic.org/health/treatments/21759-root-canal

https://www.nhs.uk/tests-and-treatments/root-canal-treatment/what-happens/

https://www.aae.org/patients/root-canal-treatment/what-is-a-root-canal/root-canal-explained/

https://www.healthdirect.gov.au/root-canal-treatment

Leave a Reply

Your email address will not be published. Required fields are marked *