Your guide to the pulpectomy procedure

Written by: Dr Moira Wong
Published: | Updated: 28/11/2019
Edited by: Emma McLeod

Children can find themselves with infected teeth after having large tooth decays or a history of dental trauma. In these cases, the pulp inside their teeth may need to be removed via a dental procedure called a ‘pulpectomy’. Dr Carmen Colomar, a paediatric dentist and member of Dr Moira Wong’s highly experienced team, regular performs pulpectomies in Dr Wong’s clinic, and here she provides answers to the most common questions regarding pulpectomies.


A young boy of around five years old is looking into the camera. He is smiling, laughing and showing his teeth



What is a pulpectomy?

During a pulpectomy, a dentist will remove the pulp from inside the crown and root of a child’s tooth.


This dental treatment is required when the pulp becomes infected. Usually, infection occurs when children have decays. It can also be required when children receive dental trauma, such as after a fall or any type of hard impact.


While pulpectomy procedures are common in children with cavities, they are not common in children who receive regular dental check-ups, have low sugar diets and maintain good dental hygiene.


Who is the treatment for?

A pulpectomy is for children who have infected baby teeth – which can also be referred to as deciduous teeth or milk teeth.


A pulpectomy can be used, in theory, for both baby and adult teeth. However, dentists use the term “pulpectomy” to refer to treatment on a baby tooth. A similar procedure, the root canal, is usually used to refer to the procedure on adult teeth – which is slightly different.


Is a pulpectomy the same as a root canal?

Both the pulpectomy and root canal have the same principle. In both, the dentist will clean the canal of the tooth’s root to clear the infection.


However, when a dentist performs a root canal (in an adult tooth), they will place a new permanent filling material inside the canal of the root where the pulp was. On the contrary, a dentist will place a resorbable filling during a pulpectomy (in a baby tooth) because the new adult tooth underneath is expected to resorb the root from the existing baby tooth later on.


What happens during treatment?

Before the treatment begins, a local anaesthetic is injected around the tooth that will be worked on.


Firstly, the pulp inside the tooth is removed with special files. Following this, the tooth is disinfected, washed, dried and filled. Lastly, it is filled with a re-absorbable material.


After the treatment, the tooth can be a bit tender because the dentist has cleaned around the tooth. The infection should clear quickly and there should be no need for medical pain relief.


Generally, the procedure takes 30-45 minutes.


Why not just remove the teeth?

Most of the time it’s important to keep the baby tooth. An exception is if the baby tooth is about to fall out and the permanent adult tooth is due to erupt and grow in soon.


Furthermore, the extraction of a baby tooth can negatively impact the growth of the permanent tooth. When it’s lost early, the adjacent teeth can shift into the space that has been left, leaving the new tooth without a clear pathway to erupt.


Can a pulpectomy be avoided?

In cases of infections caused by cavities, these can be avoided by ensuring your child maintains good dental hygiene and has regular dental check-ups. A pulpectomy can be avoided by diagnosing decay in the early stages and preventing dental trauma. An alternative to the procedure is to extract the tooth, but as previously mentioned, this is often not the best treatment in the long term.


Visit Dr Wong’s Top Doctors profile to find out how she and her highly skilled team at Moira Wong Orthodontics can care for your family’s orthodontic needs, including a pulpectomy should your child need one.

By Dr Moira Wong

Dr Moira Wong is a highly accomplished orthodontist based in London, with extensive experience in all aspects of dentistry.

Dr Wong qualified from the prestigious London Hospital Medical College before going on to specialise in orthodontics. She was accepted onto the specialty training course at Guy’s hospital where she gained a master’s degree, before receiving more training at the renowned King’s College and St George’s Hospital and gaining a fellowship in orthodontics.

One of the most well-trained orthodontists in London, Dr Wong gained her experience in both the UK and the US, where she worked with the Pennstar Trauma team at the University of Pennsylvania treating gunshot victims. She later took a post as a senior house officer in the oral surgery unit at Mount Vernon Hospital and gained unique experience treating victims of a train crash.

Dr Wong later went on to establish her own dental practice, Moira Wong Orthodontics, and is highly regarded by patients and peers alike. At the cutting-edge of her field, Dr Wong can offer the best patient care and the most up-to-date treatments for adults and children alike.

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