When your dentist recommends a root canal, one of the first questions that comes to mind is often: “How long will it take?”
The good news is that modern dentistry has made root canal therapy faster, more comfortable, and far more efficient than it used to be. Still, the exact duration can vary depending on several factors.
In this blog, we’ll break down how long a root canal typically takes, what can affect the treatment length, and what you should expect during the procedure.
How Long Does a Root Canal Usually Take?
In most cases, a standard root canal takes 30 to 90 minutes.
Some treatments are completed in a single appointment, while others may require two visits depending on the complexity of the tooth and the severity of the infection.
Here’s a quick general guideline:
- Front teeth (incisors and canines): 30–60 minutes
- Premolars: 45–75 minutes
- Molars: 60–90 minutes or more (they have more canals and are more complex)
What Affects the Duration of a Root Canal?
1. Location of the Tooth
Molars, located at the back of your mouth, have more roots and canals, making them more time-consuming to treat than front teeth.
2. Severity of the Infection
If the infection is extensive or there is swelling around the tooth, the dentist may need more time to clean and shape the canals properly.
3. Complexity of the Root Canal Anatomy
Some teeth have curved or narrow canals, which require extra attention and precision.
4. Whether You Need Multiple Visits
Your dentist may recommend two sessions if:
- the tooth is severely infected
- medication needs to be placed inside the canals
- additional cleaning is required
5. The Dentist’s Equipment and Expertise
Clinics using digital imaging, rotary instruments, and modern microscopes often complete procedures more quickly and efficiently.
What Happens During the Appointment?
Although the time may vary, the steps are generally the same:
- Numbing the tooth to ensure comfort
- Creating an opening in the tooth
- Removing infected pulp and cleaning the canals
- Shaping and disinfecting the canal system
- Filling the canals with a biocompatible material
- Sealing the tooth, often followed by a crown at a later visit
The process is designed to eliminate pain—not cause it. With modern anesthesia and technology, most people feel far more comfortable than they expect.
Do You Need a Crown After a Root Canal?
In many cases, yes. Teeth that undergo root canal treatment often become more fragile, especially molars. A dental crown helps restore strength, function, and long-term protection.