Is a root canal done in one appointment?

Often, yes. The ADA says treatment usually takes one or two office visits, and Delta Dental notes that more difficult cases may need an extra one. The permanent filling or crown is a separate appointment either way.

How long does the numbing last afterward?

The AAE says a tooth may feel sore or numb after treatment and can cause mild discomfort for a few days. Ask your dentist what to expect for your case before you leave.

Do I need to take the whole day off work?

Plan for the appointment itself to run up to about 90 minutes. Cleveland Clinic notes that patients who are given medication to help them relax may be drowsy afterward, so ask whether sedation is part of your plan before you arrange a ride or a shift.

How long will a root canal take?

Published August 19, 2026

Most root canals take 60 to 90 minutes of chair time and are finished in one or two visits, with molars taking longest.

That range is Cleveland Clinic's: most root canals take about 60 to 90 minutes, and some need more than one visit. The American Dental Association puts it the same way in visits rather than minutes — treatment usually takes one or two office visits to complete. The American Association of Endodontists agrees it can usually be completed in one or two appointments, depending on the condition of the tooth.

Sources: Cleveland Clinic, American Dental Association (MouthHealthy), American Association of Endodontists

This page is general information, not dental advice. Every mouth is different, and the only person who can tell you what your tooth needs is a dentist who has looked at it and taken an X-ray.

Where the time actually goes

An hour and a half sounds long until you see what is inside it. The appointment is four jobs done in sequence, and only one of them is the part people picture.

Stage	What happens	Same visit?
Numbing	Local anesthetic around and including the tooth, so you do not feel the procedure	Yes
Opening and cleaning	An opening is made in the top of the tooth; the nerve is removed from inside the tooth and from each root canal, and the inside is cleaned	Yes
Filling and sealing	The canals are filled and sealed, and a temporary filling closes the tooth	Yes, or at a second visit
The permanent filling or crown	The temporary filling is removed and replaced with a regular filling or a crown; a post may be placed to support a crown	No — its own appointment

The stages of a root canal appointment, as the ADA describes them. The crown visit is listed because it is the step people forget when they budget their day.

Source: American Dental Association (MouthHealthy)

Why a molar takes longer than a front tooth

Delta Dental says it plainly: in general, front teeth will take less time, because access to the tooth is easier and because they have fewer roots. That is also why the same insurer publishes a higher fee for a molar than for a front tooth — the tooth is harder to reach and there is more inside it to clean.

Source: Delta Dental

The fee difference by tooth is on our cost page, with the published figures next to each one: what a root canal costs, by tooth and with insurance.

How many appointments is a root canal?

One or two for the root canal itself. Delta Dental adds the honest caveat that more difficult cases may require an additional visit. Then there is the restoration appointment on top, which is not part of the root canal and is not covered by its fee.

Sources: Delta Dental, Delta Dental

What makes it two visits instead of one

The condition of the tooth. The AAE ties the number of appointments directly to it.
Which tooth it is. Front teeth are quicker to get to and have fewer roots, per Delta Dental.
Whether the dentist places the permanent filling or crown that day, or brings you back for it. The ADA describes the crown as a later step.

How long does a root canal take on a front tooth?

Less time than a molar, for the two reasons above — easier access and fewer roots. Neither Delta Dental, the ADA nor the AAE publishes a separate stopwatch figure per tooth, so we are not going to invent one. The 60-to-90-minute band from Cleveland Clinic is the number to plan around, and a front tooth sits at the short end of it.

How long should you set aside?

Book the whole morning or the whole afternoon for the first appointment, not a lunch hour.
Assume a second appointment for the permanent filling or crown, and ask at booking whether it is included in the quote.
Ask whether an endodontist or a general dentist is doing it — that changes who you are scheduling with, and it changes the fee.

The root canal fee covers the appointments and X-rays needed to finish the root canal. It does not cover the crown.

That is Delta Dental's wording, not ours: the dentist fee includes all appointments and X-rays necessary to complete the root canal treatment, but these fees do not include the final restoration of the tooth.

Source: Delta Dental

If you are looking for someone to do it, these are the dentists AI assistants actually name when Floridians ask. Nobody can pay to be on these lists.

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Questions people ask next

Is a root canal done in one appointment?: Often, yes. The ADA says treatment usually takes one or two office visits, and Delta Dental notes that more difficult cases may need an extra one. The permanent filling or crown is a separate appointment either way.
How long does the numbing last afterward?: The AAE says a tooth may feel sore or numb after treatment and can cause mild discomfort for a few days. Ask your dentist what to expect for your case before you leave.
Do I need to take the whole day off work?: Plan for the appointment itself to run up to about 90 minutes. Cleveland Clinic notes that patients who are given medication to help them relax may be drowsy afterward, so ask whether sedation is part of your plan before you arrange a ride or a shift.

Written for patients by Most Recommended Dentists, which measures which dentists AI assistants actually recommend in 20 U.S. metros. Nobody can pay to be on those lists. How we measure.