Every week someone sits across from me and says the same thing before I even begin. They say they have heard root canal treatment is the most painful dental procedure a person can go through. Some of them have been delaying the appointment for months. A few have been in real pain from an infected tooth but kept putting it off because the treatment sounded worse than the problem itself.
I want to address this directly. The fear around root canal treatment is one of the most outdated pieces of dental information still going around. The procedure is not the painful part. The infected tooth is.
I am Dr. Phani Babu, practising at Dent Eazee, a dental clinic in Adyar, for 25 years. Here is what actually happens during a root canal treatment.
What Is Root Canal Treatment and Why Is It Needed
Inside every tooth is a soft tissue called the pulp. It contains nerves and blood vessels. When a cavity is left untreated for too long, bacteria reach the pulp and infect it. That infection is what causes the throbbing, waking-you-up-at-night pain that patients describe.
Root canal treatment removes the infected pulp tissue, cleans the canals inside the root, and seals the tooth. The tooth is then restored with a dental crown to protect it. The goal is to save the natural tooth rather than extract it.
When patients say root canal is painful, they are usually remembering the pain of the infection that made it necessary. The treatment resolves that pain.
Does Root Canal Treatment Actually Hurt
The short answer is no, not under proper local anaesthesia. Before I begin any root canal treatment, the area is fully numbed. You will feel pressure during the procedure but not pain. That is a meaningful distinction.
There are cases where a tooth with a severe active infection is harder to numb completely. The acidic environment of an abscess can reduce how well local anaesthesia works. In those situations I will either wait for antibiotics to reduce the infection first, or use additional anaesthetic techniques to ensure the area is fully numb before I proceed.
Patients who tell me root canal was painful are almost always describing a procedure done years ago, before modern rotary instruments became standard, or by someone who did not allow adequate time for the anaesthetic to take full effect.
What Happens Step by Step During the Procedure
First, the tooth and surrounding area is numbed completely. Once you cannot feel anything, I make a small opening through the top of the tooth to access the pulp chamber.
The infected pulp is removed using fine instruments. The canals inside the roots are cleaned, shaped and disinfected. This takes the most time but the patient typically feels nothing beyond mild pressure.
The cleaned canals are filled with a material called gutta percha, which seals them permanently. The access opening is closed, and the tooth is later restored with a crown for full protection.
For a front tooth or single-rooted tooth, the procedure often takes one sitting of about 45 to 60 minutes. Molars have more canals and typically need two sittings. I will tell you which applies to your tooth before we start.
What to Expect After the Procedure
Once the anaesthetic wears off, some soreness around the treated tooth is normal for 24 to 48 hours. This is tissue tenderness, not the deep infection pain from before. Standard over-the-counter pain relief manages it well for most patients.
Within a few days, patients consistently tell me they feel significantly better than before the procedure. The infection pain is gone. I ask patients to avoid chewing hard food on the treated side until the dental crown is placed, as an unrestored tooth is structurally fragile. Once the crown is done, the tooth functions completely normally.
What Happens If You Keep Delaying Root Canal Treatment
A tooth that needs root canal treatment will not improve on its own. The infection spreads.
From the root tip, infection can move into the jawbone. It can form an abscess that swells into the cheek or jaw. In severe cases it affects adjacent teeth, requires surgical drainage, or spreads beyond the jaw entirely. Treatment at that stage is far more complex than the root canal would have been weeks earlier.
The cost and complexity of treatment goes up the longer it is left. A straightforward root canal treatment in Adyar at the right time is almost always the simplest and most affordable option available.
What About Anxious Patients
Some patients have genuine dental anxiety. For those patients, sedation dentistry is available at our dental clinic in Adyar. Conscious sedation keeps you relaxed and comfortable throughout the procedure. I have treated patients who had avoided dental care for 10 or 15 years because of anxiety. With sedation, the procedure becomes entirely manageable.
FAQ
Is root canal treatment painful?
No, with proper local anaesthesia the procedure involves pressure but not pain.
How many sittings does root canal treatment take?
Single-rooted teeth take one sitting; molars with multiple canals typically need two sittings.
How long does recovery take after root canal treatment?
Mild soreness for 24 to 48 hours is normal; most patients return to routine activity the same day.
Is it better to extract the tooth than get root canal treatment?
Saving the natural tooth is almost always preferable; extraction leads to bone loss and requires a replacement.
Will I need a crown after root canal treatment?
Yes, a crown is recommended after most root canal treatments to protect the tooth from fracture.
Can root canal treatment fail?
The success rate is above 95 percent; reinfection can occasionally occur and is treatable with retreatment.
Is root canal treatment safe during pregnancy?
Yes, the local anaesthesia used is safe and leaving an untreated infection carries more risk than treating it.
