A pulpotomy, often called a baby root canal, treats a baby tooth when decay has reached the nerve. The dentist numbs the tooth, removes the infected pulp in the crown, disinfects and seals what remains, and usually finishes with a crown. It saves the tooth so it can do its job until it falls out naturally.
Hearing the words root canal in connection with your young child can be unsettling. The good news is that a pulpotomy is a smaller, more focused procedure than an adult root canal, and most children feel better afterward than they did before. Below we explain what the procedure involves, why saving a baby tooth is worth it, how it compares with other options, and what to expect on the day and at home.
Every tooth has soft tissue inside it called the pulp, which contains nerves and blood vessels. The pulp runs from the crown of the tooth, the part you can see, down through the roots. When a cavity gets deep enough to reach that tissue, bacteria can infect it and cause pain, sensitivity and swelling.
In a pulpotomy, only the infected pulp in the crown of the tooth is removed. The healthy tissue in the roots stays in place. The dentist then disinfects the area, places a medicated filling to seal it, and covers the tooth, usually with a crown. A pulpectomy, the procedure most people think of as a root canal, goes further and removes the pulp from the roots as well. For baby teeth, a pulpotomy is often an alternative to a pulpectomy when the infection has not spread all the way down.
That difference is why the name baby root canal is a helpful shorthand but not a perfect description. A pulpotomy is designed for the shape and lifespan of primary teeth, and it is usually completed in a single visit.
This is one of the most common questions parents ask, and it is a fair one. Baby teeth do eventually fall out. The first ones usually loosen around age 6, but the last baby teeth can stay in place until about age 12 to 14. That is a long time for a child to go without a back tooth.
Baby teeth also hold space for the adult teeth developing underneath. When one is lost early, the neighboring teeth can drift into the gap and crowd the adult tooth that is supposed to come in there. Saving the tooth preserves that space naturally. It also keeps chewing comfortable and supports clear speech while your child is growing.
Untreated infection is another concern. A tooth with an infected nerve does not heal on its own, and the pain usually gets worse over time. Treating it early is generally simpler and more comfortable for your child than waiting until the infection spreads. Our post on whether baby tooth cavities really need fillings covers the earlier stages of decay, before the nerve is involved.
Only an exam and X-rays can confirm that decay has reached the pulp, but these signs are worth a call to the office:
Swelling, fever or pain that is getting worse should be seen promptly. Our guide to pediatric dental emergencies explains which situations need same-day care and what you can do in the meantime.
The choice depends on how far the infection has spread, how much healthy tooth structure is left, and how long the tooth still needs to last. X-rays show whether the problem is limited to the crown or has moved into the roots. In broad terms, the options compare like this:
If the infection has spread too far for a pulpotomy, an extraction with a space maintainer is often the safer choice. We will explain the X-ray findings and walk you through every option before anything is decided. Learn more about how we approach pediatric extractions when a tooth cannot be saved.
The tooth is numbed completely before anything else happens, so the procedure itself is comfortable. Once the area is numb, the dentist removes the decay, takes out the infected pulp in the crown of the tooth, disinfects the space and places a medicated seal. The whole visit usually takes about an hour, including the crown. At the exam, we will tell you whether it can be done the same day.
Most pulpotomies finish with a crown, because a tooth that has had decay reach the nerve often does not have enough strong structure left to hold a filling. Pediatric dental crowns cover the whole tooth so it can keep working until it falls out on its own schedule. Back teeth usually get stainless steel crowns, where strength matters most and the crown will not show. Tooth-colored options are available for front teeth or when appearance is a priority. Crowns on baby teeth come out with the tooth, so there is no separate removal later.
For anxious children, or when several teeth need treatment at once, we will talk with you about sedation options before the visit.
Most children feel better soon after treatment, because the pressure and pain from the infection are gone. The cheek, lip and tongue on that side will stay numb for a while after the appointment, so keep an eye on your child to make sure they do not bite or chew on them until the feeling returns. Soft foods are a good choice for the rest of the day.
After that, a crowned tooth is cared for exactly like a natural one. Brush and floss around it every day, avoid sticky candy that can pull at the edge of the crown, and keep up regular checkups so we can monitor the fit. Call the office if your child has swelling, a fever or pain that increases instead of improving.
The tooth is numbed completely, so the procedure itself is comfortable. Most children feel better afterward, since the infection that was causing pain has been treated.
Losing a baby tooth early lets neighboring teeth drift into the space, which can crowd the adult tooth. Saving the tooth keeps that space open naturally.
A crowned baby tooth is designed to last until it falls out naturally. The crown comes out with the tooth when the adult tooth is ready.
Most pulpotomies start as cavities that went unnoticed. Brushing twice a day, limiting sugary snacks and keeping up regular checkups give us the chance to treat decay while it is still small.
If your child has a toothache or a cavity that worries you, our pediatric dentists can find the cause and explain the simplest way to fix it. Learn more about pediatric pulpotomies at San Elijo Pediatric Dentistry & Orthodontics, or contact our San Marcos office to schedule a visit. You can also call us at (760) 599-5437.
