How long is it sore afterward?

The AAE says the tooth may be sore or numb and can cause mild discomfort for a few days. If yours is worse than that or lasts longer, call the practice that treated you.

Can I be sedated for a root canal?

Cleveland Clinic notes that if you are nervous you may be given medication to help you relax, and that you might be drowsy afterward. Whether it is offered and what it costs is a practice-by-practice question — ask when you book.

Is a root canal painless?

Published August 19, 2026

A root canal is done under local anesthetic, and the ADA says there is little to no pain during the procedure itself.

The ADA's wording is direct: there is little to no pain because your dentist will use local anesthesia so you don't feel the procedure. Cleveland Clinic frames it by comparison — root canals are usually no more painful than getting a filling. The American Association of Endodontists calls treatment virtually painless, and notes that since patients are given anesthesia, a root canal isn't more painful than a regular dental procedure such as a filling or having a wisdom tooth removed.

Sources: American Dental Association (MouthHealthy), Cleveland Clinic, 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.

The number the endodontists publish

Patients who have had a root canal are six times more likely to describe it as painless than patients who have had a tooth extracted.

That is the AAE's own figure, and the comparison group matters: it is people who had a tooth pulled, not people who had nothing done. The AAE also says root canal treatment often leaves you with less discomfort during recovery than having the natural tooth extracted.

Source: American Association of Endodontists

What you will actually feel, stage by stage

When	What the sources say	Who says it
Before the dentist starts	The area around and including the tooth is numbed so you do not feel the procedure	ADA
During	No more painful than getting a filling; you may feel pressure	Cleveland Clinic
If you are anxious	You may be given medication to help you relax, and you might be drowsy afterward	Cleveland Clinic
The days after	The tooth may feel sore or numb, and can cause mild discomfort for a few days	AAE

Assembled from what the ADA, Cleveland Clinic and the AAE publish. Nothing in this table is our own observation.

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

Are root canals painful, or is that the toothache talking?

The reputation is older than the anesthetic. What the three sources above agree on is narrow and worth being precise about: the procedure is done numb, it compares to a filling, and the soreness comes afterward and is described as mild. None of them promises you will feel nothing, and neither will we.

Pressure is not pain

Cleveland Clinic specifically says you may feel pressure during the procedure. That is a different sensation from pain, and it is expected.
Cleveland Clinic also lists mild soreness afterward as normal.
The AAE puts the post-treatment window at a few days of mild discomfort.

What to tell the dentist

Say if you have ever had trouble getting numb. It changes how they plan the appointment.
Ask what sedation options the practice offers if you are anxious, and ask before the day, not in the chair.
Ask what they expect the days after to feel like for your tooth specifically, and when to call if it does not match.

If it is the length of the appointment you are dreading rather than the pain, that is answered here: how long a root canal takes.

Comfort is a practice-by-practice thing. These are the dentists AI assistants name when Floridians ask, measured across Florida metros — and nobody can buy a place on the list.

Not your city? See every metro we measure.

Questions people ask next

Does a root canal hurt more than a filling?: Cleveland Clinic says root canals are usually no more painful than getting a filling, and the AAE makes the same comparison.
How long is it sore afterward?: The AAE says the tooth may be sore or numb and can cause mild discomfort for a few days. If yours is worse than that or lasts longer, call the practice that treated you.
Can I be sedated for a root canal?: Cleveland Clinic notes that if you are nervous you may be given medication to help you relax, and that you might be drowsy afterward. Whether it is offered and what it costs is a practice-by-practice question — ask when you book.

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.