Wondering how much time to block off for a root canal?

If you’ve been told you need a root canal, you probably have a few questions—starting with:
“How long is this going to take?”

The good news? Root canals are a lot quicker and easier than most people think. Today’s modern techniques and tools allow many procedures to be completed in just one visit, with most patients in and out in about 60–90 minutes.

So, How Long Does a Root Canal Take?

The average root canal takes 60 to 90 minutes.
That includes numbing the area, cleaning out the infection, and sealing the tooth.

In some cases—especially for molars or teeth with complex roots—you may need two visits, each lasting 45–75 minutes.

Here’s a breakdown of what to expect at each step.

Your Root Canal Timeline: Start to Finish

1. Consultation & Diagnosis (15–30 minutes)

Before any treatment happens, we’ll need to:

  • Take digital X-rays

  • Examine the tooth

  • Confirm whether a root canal is needed

If your dentist has already referred you to an endodontist, this step might be combined with your treatment visit.

2. Numbing the Area (5–10 minutes)

We use local anesthesia to numb the tooth and surrounding area. This part is fast and totally painless—you’ll just feel pressure, not pain.

✅ Fun fact: Most patients say the numbing shot was the worst part, and even that wasn’t bad.

3. Cleaning Out the Infected Pulp (25–45 minutes)

This is the core of the procedure. Your endodontist will:

  • Access the pulp chamber

  • Remove the infected or damaged tissue

  • Clean and disinfect the root canals

This step can go quicker for front teeth, which typically have one canal. Molars can have three or more, which takes longer.

4. Filling & Sealing the Tooth (10–20 minutes)

Once clean, the canals are filled with a biocompatible material and sealed. This prevents bacteria from re-entering the space.

5. Optional: Placing a Temporary Crown (5–10 minutes)

If your tooth needs a crown (most back teeth do), a temporary one may be placed until your permanent crown is ready.

Single Visit vs. Two-Visit Root Canals

Single-Visit Root Canal

Most root canals today can be done in one appointment—especially if the infection is mild and the tooth isn’t overly complex.

Two-Visit Root Canal

In some cases, your endodontist may recommend two visits, usually spaced a week or two apart. This is often the case when:

  • The infection is severe

  • The anatomy is complex

  • You need time for healing before placing a crown

Don’t worry—if a second visit is needed, we’ll explain exactly why and what to expect.

What Can Make a Root Canal Take Longer?

Here are a few things that may extend the timeline:

  • Molar teeth: More canals = more time

  • Calcified roots: Harder to clean

  • Severe infection: May require more irrigation or medication

  • Retreatment: Fixing a failed previous root canal is more time-intensive

  • Extra anatomy: Some teeth have unexpected extra canals or curved roots

That’s why going to an experienced endodontist matters. We’re trained to spot these things early and handle them efficiently.

What Happens After the Root Canal?

The root canal itself may be done, but you’re not completely finished yet—especially if the tooth needs a permanent crown.

Here’s the usual follow-up:

  • You’ll likely return to your general dentist for a permanent crown within 1–2 weeks

  • Until then, avoid chewing on that side of your mouth if a temporary crown was placed

  • Mild soreness is normal and typically fades within a few days

How to Prepare for Your Appointment

To make your appointment go as smoothly (and quickly) as possible:

✅ Eat before your visit (you’ll be numb afterward)
✅ Take any prescribed medications ahead of time
✅ Bring your insurance card or payment info
✅ Wear comfy clothes—you’ll be reclined during treatment
✅ Plan a light day—you’ll likely want to rest a bit after

Conclusion

Root canals have come a long way in recent years. What used to be a long, uncomfortable process is now often quick, smooth, and pain-free—with most treatments done in a single visit.

If you’re dealing with tooth pain and worried about how long a root canal will take, don’t stress. From start to finish, we’ll make the experience as efficient, comfortable, and informative as possible.

FAQs – Quick Answers

1. Can a root canal be done in one day?

Yes! Most root canals today are completed in one 60–90 minute visit, especially on front teeth or premolars.

2. How long will I be numb after?

Numbing usually wears off in 2–4 hours, depending on your metabolism and the type of anesthetic used.

3. Do molars take longer for a root canal?

Yes—molars have more canals and are harder to reach, so they often take 75–90 minutes or may need two visits.

4. Will I need time off work after?

Most patients return to work or school the same day, but if possible, plan for a few hours of rest just in case.

5. How long between the root canal and getting a crown?

Most people get their permanent crown within 1–2 weeks after the root canal is complete.