Your child's dentist has just used the phrase "root canal" and your stomach has dropped. It sounds serious. It sounds painful. And when it involves your child, the worry hits differently.
The good news is that root canal style treatment in children is often simpler than what adults go through, and in many cases involves a different procedure entirely. This guide explains what might be recommended, why, and what your child will actually experience.
Baby Teeth vs Permanent Teeth
Baby teeth have roots and nerves, just like adult teeth, and they can cause real pain when decay gets deep. But the goal of treatment is different.
For a baby tooth, treatment aims to keep the tooth comfortable and infection-free until it naturally falls out, preserving the space for the permanent tooth underneath. For a permanent tooth, root canal treatment aims to save the tooth for life.
That difference in goal shapes the type of procedure your dentist will recommend.
The Three Main Procedures
Many people use "root canal" as a catch-all, but for children there are three distinct treatments. The right one depends on the tooth and how far infection has spread.
| Procedure | When it's used |
|---|---|
| Pulpotomy (baby tooth) | Decay has reached the nerve but infection is mainly in the crown of the tooth |
| Pulpectomy (baby tooth) | Infection or inflammation has spread into the root canals |
| Root canal (permanent tooth) | The nerve of a permanent tooth is inflamed or infected |
Pulpotomy
A pulpotomy is the most conservative option. The dentist removes the inflamed nerve tissue from the crown of the baby tooth but leaves the healthy root tissue in place. The tooth is then sealed and restored, usually with a strong filling or a stainless steel crown. This is typically completed in a single visit.
Pulpectomy
If infection has spread deeper into the roots of a baby tooth, a pulpectomy may be needed. This involves removing the nerve tissue from both the crown and the root canals, then filling the canals with a resorbable material that will dissolve naturally as the tooth falls out. It usually takes one to two visits.
Root canal on a permanent tooth
When a permanent tooth is involved, the procedure is a conventional root canal. The entire canal system is cleaned, disinfected and sealed. Permanent back teeth often benefit from a crown afterwards to reduce fracture risk. This typically takes one to two visits, sometimes more for complex cases.
Your dentist will recommend the right option based on the tooth, symptoms, and X-ray findings. In some cases, extraction is the safer or more predictable choice, especially if a baby tooth is close to naturally falling out or the tooth cannot be restored well.
Signs Your Child Might Need Pulp Treatment
Some children have very deep decay with little complaint until infection flares up. In our experience, the signs parents should watch for include:
- lingering toothache or pain that keeps coming back
- pain when biting or chewing on one side
- swelling of the gum, a pimple-like bump (sometimes called a gum boil), or a bad taste
- sensitivity to hot or cold that does not settle
- a visible deep cavity, broken tooth, or a tooth that has had repeated fillings
- discolouration after a knock to the tooth, especially if pain develops later
If your child has facial swelling that is spreading, a fever alongside dental pain, or any difficulty breathing or swallowing, treat it as urgent and seek immediate medical help.
What Happens During the Appointment
The exact steps vary depending on the procedure, but the overall flow is similar.
Assessment and X-ray. Your dentist examines the tooth, asks about symptoms, and takes an X-ray to confirm the diagnosis and whether the tooth can be saved.
Local anaesthetic. The tooth is numbed fully. This is what prevents pain during treatment. One thing we hear often from parents is that this step worries them more than the procedure itself, but modern techniques make it much gentler than you might expect.
Isolation and access. The dentist creates a clean working area. For permanent teeth, a rubber dam is often used to isolate the tooth and keep the area dry.
Cleaning and disinfection. Inflamed or infected tissue is removed and the internal space is carefully cleaned.
Sealing and restoring the tooth. The tooth is sealed and restored. Baby teeth may be finished with a strong filling or crown. Permanent teeth are typically restored with a crown for long-term protection.
Will It Take More Than One Visit?
Sometimes treatment can be completed in one appointment. Often it takes two. Patients tell us the number of visits is one of their first questions, so here is what tends to add a second appointment:
- the tooth is very infected or there has been swelling
- staged cleaning and medication between visits is considered safer
- your child is struggling to cope with long appointments and splitting treatment helps
Is It Painful?
Root canal style treatment should not be painful during the procedure. Local anaesthetic numbs the tooth fully, and children should feel pressure or vibration rather than sharp pain.
Afterwards, mild tenderness for a few days is possible, particularly if the tooth was already inflamed. This is usually manageable and settles quickly.
Sedation Options for Anxious Children
If treatment feels overwhelming for your child, sedation can make a real difference. At Danbury Dental Care, we offer two paediatric sedation options:
- Inhalation sedation for many younger children and those who tolerate a nose mask well
- Paediatric IV sedation for selected cases, typically children over 20kg, when deeper support is more appropriate
Inhalation sedation wears off quickly and is often the gentler starting point. Paediatric IV sedation provides deeper relaxation but involves a longer recovery period and an escort home. Suitability is confirmed only after a careful consultation and medical assessment.
You can read more in our parent's guide to paediatric sedation and our guide on what paediatric IV sedation involves.
Who Treats Children's Root Canals at Danbury Dental Care?
At Danbury Dental Care, children needing root canal treatment are looked after by our endodontist, Dr Ankit Patel (GDC No. 259174). Dr Ankit completed a Master's in Endodontic Practice at Queen Mary University of London and is known for his calm, reassuring manner, which makes a real difference when treating younger or more anxious patients.
Where children's sedation is needed, Dr Ankit works alongside Dr Kaly Gengeswaran, our sedation lead, so your child's endodontic care and sedation can be coordinated under one roof.
What Does It Cost?
We know cost is a practical concern for parents. At Danbury Dental Care, root canal treatment fees are:
| Treatment | Fee |
|---|---|
| Root canal (general dentist) | £690 |
| Root canal (endodontist) | £850 to £950 |
| Inhalation sedation | from £250 per hour |
| Paediatric IV sedation | from £950 |
A crown may also be needed afterwards for permanent teeth, starting from £790. You will always receive a full treatment plan with costs before any treatment begins.
Long-Term Outlook
For baby teeth, success means the tooth stays comfortable and functional until it naturally falls out, without repeated infections or pain.
For permanent teeth, the goal is long-term retention. When the tooth is treated well and restored properly, root canal treatment is usually very successful. If you want the research-led discussion about outcomes, see our guide to root canal treatment success rates and costs in the UK.
Next Steps
If you are worried your child may need pulp treatment, the right next step is an assessment and an X-ray so the diagnosis is clear. From there, you can talk through whether a pulpotomy, pulpectomy, root canal, or another approach is the safest option for your child.
To discuss your child's situation, call 01245 225091 or get in touch. We are happy to answer your questions before you commit to anything.