Root canals

Why would a child’s tooth need nerve treatment?

Inside every tooth is a soft centre of nerves and blood vessels called the pulp. When a deep cavity extends to the pulp, or a nerve is exposed after an injury, the pulp becomes inflamed or infected and can’t heal on its own. At that point there are usually two choices: treat the nerve and keep the tooth, or remove the tooth. Removing the nerve is the last effort we make to save a tooth from removal — because if a damaged nerve is left untreated it will develop an infection, and dental infections can become serious, sometimes spreading beyond the tooth and requiring hospital care.

Pulpotomy and pulpectomy — what’s the difference?

In children, nerve treatment usually takes one of two forms. A pulpotomy — sometimes called a “baby root canal” — removes only the affected part of the nerve in the crown of the tooth, leaving the healthy nerve in the roots in place. A pulpectomy removes the nerve tissue completely, including from the roots. Which is appropriate depends on how far the inflammation has spread; your child’s clinician will confirm the most suitable approach after examination and X-rays, and the plan may change once treatment begins and the nerve can be seen directly. Our parent guide, what is a pulpotomy, walks through it step by step.

Why save a baby tooth at all?

It’s a fair question — baby teeth fall out eventually anyway. But baby teeth hold space for the adult teeth, guide them into position, and matter for chewing, speech and confidence. Losing a baby molar years early can allow crowding that affects the adult smile. When a tooth can be saved comfortably, keeping it is usually the best outcome for your child’s development — though not every tooth can or should be saved, and we’ll always talk you through the options honestly, including extraction where that is the better path.

What to expect at the appointment

Nerve treatment sounds daunting, but for the child in the chair it feels much like having a filling. The tooth is thoroughly numbed, the decay and affected nerve tissue are removed, a soothing medicated dressing is placed, and the tooth is sealed. Because a tooth that has had nerve treatment can become brittle, it is often protected with a crown afterwards — your clinician will advise what’s best for the particular tooth. For anxious children, happy gas and other comfort options are available.

Frequently asked questions

Is a pulpotomy painful for my child?

The tooth is completely numbed first, so treatment itself shouldn’t hurt — most children describe pressure rather than pain. In fact, nerve treatment usually relieves pain, because it removes the inflamed tissue that was causing the toothache in the first place.

Why not just take the tooth out instead?

Sometimes that is the right choice — but early loss of a baby tooth can cause crowding and drifting that affects the adult teeth. Saving the tooth preserves space and function. Your child’s clinician will weigh up both options with you honestly.

Will the treated tooth still fall out normally?

Yes — a baby tooth that has had a pulpotomy is expected to loosen and fall out on its own schedule when the adult tooth beneath it is ready, just like its neighbours.

Does a tooth always need a crown after nerve treatment?

Often, but not always. A crown protects a tooth left fragile by decay and treatment, and for baby molars it is frequently the most durable choice. Your child’s clinician will recommend the right restoration for the specific tooth.

How do I care for my child after treatment?

Care is much the same as after a filling: gentle eating while numbness wears off, normal brushing, and age-appropriate comfort measures if the area is tender. Our guide to post-treatment care covers it in detail.

Concerned about a toothache?

Toothache in a child is always worth investigating promptly — early treatment keeps options open. Book an appointment or contact us, and children in pain will always be prioritised.