At our Dandridge and Jefferson City offices, parents often ask the same question when we recommend a pulpotomy: "It is just a baby tooth, why not pull it?" It is a fair question. The short answer is that baby teeth do important work until the adult teeth are ready, and a pulpotomy is usually the easiest way to keep a decayed tooth healthy until it falls out on its own.
The Short Version
What it is: removing the infected or inflamed nerve tissue from the top part of a baby tooth, then sealing and crowning the tooth.
When it is needed: a cavity has reached the nerve, but the roots are still healthy.
How long: usually one visit of 30 to 45 minutes.
Why it matters: it stops pain and keeps the tooth holding space for the adult tooth underneath.
What Is a Pulpotomy?
Every tooth has a soft center called the pulp, which contains nerves and blood vessels. Baby teeth have thin enamel and a large pulp, so a cavity can reach the nerve much faster than it would in an adult tooth. Once bacteria reach the pulp, the tooth becomes inflamed and can start to hurt.
In a pulpotomy, we remove the decay and the affected pulp from the crown of the tooth, the part above the gums. The healthy pulp in the roots is left in place. We place a medicine over the remaining pulp to protect it, then cover the tooth with a crown. On back baby teeth this is usually a durable stainless steel crown, because a tooth that has had a pulpotomy is weaker and a filling alone often does not hold up.
Pulpotomy vs. Pulpectomy
If the infection has spread into the roots, a pulpotomy is not enough. A pulpectomy removes all of the pulp, including the root portion, and fills the canals with a material that dissolves naturally as the baby tooth gets ready to fall out. If the infection is severe or the tooth cannot be saved, removing it may be the better choice. We will explain which option fits your child's tooth and why.
Signs Your Child Might Need One
- A toothache, especially one that wakes your child up at night
- Pain with hot, cold, or sweet foods that lingers after eating
- A large dark spot or hole in a back tooth
- Chewing only on one side or refusing certain foods
- Swelling or a pimple on the gums near a tooth, which can mean infection
Some children with deep cavities have no symptoms at all, which is why regular checkups and x rays matter. If you notice swelling, fever, or a swollen face, call us right away. Our article on dental abscesses explains why infections need prompt attention.
Why Save a Baby Tooth?
Baby front teeth usually fall out around age 6 or 7, but baby molars often stay until age 10 to 12. That is years of chewing, speaking, and smiling. Baby teeth also act as natural space holders. If a molar is pulled early, the teeth next to it can drift into the gap and block the adult tooth from coming in where it should. That can lead to crowding and a greater need for orthodontic treatment later.
When a baby tooth does have to come out early, we often recommend a space maintainer to hold the gap open. Keeping the natural tooth with a pulpotomy usually avoids that extra step entirely.
What to Expect at the Visit
Most pulpotomies are done in a single appointment. We start by numbing the tooth so your child is comfortable. For kids who are nervous, nitrous oxide (laughing gas) can help them relax, and it wears off within minutes after the visit. For children who need more extensive work or have a hard time in the dental chair, we can talk about other sedation options.
Once the tooth is numb, we remove the decay, clean out the infected pulp in the crown, place the medicine, and fit the crown. Your child will feel pressure and hear some noise, but should not feel pain. The whole process usually takes 30 to 45 minutes.
Aftercare at Home
- Watch the numb lip. Children often bite or chew their numb lip, cheek, or tongue without realizing it. Stick to soft foods and keep an eye on them until the numbness wears off, usually 2 to 3 hours. Our guide on how long numbness lasts has more tips.
- Expect mild soreness. The gums around the new crown may be tender for a day or two. Children's acetaminophen or ibuprofen, dosed for your child's weight, usually helps.
- Avoid sticky candy. Taffy, caramels, and gummy treats can pull on crowns. They are also hard on every other tooth.
- Keep brushing. Brush the crowned tooth like any other tooth, twice a day with fluoride toothpaste, and floss around it.
Call us if pain gets worse after a few days, if swelling appears, or if the crown comes loose.
Preventing the Next One
A child who needs one pulpotomy often has other teeth at risk. Cutting back on sipping sweet drinks between meals, brushing with the right amount of fluoride toothpaste, and keeping up with six month visits make a big difference. Dental sealants on the permanent molars add another layer of protection once those teeth come in. You can also read our guide to cavities in baby teeth for more prevention tips.
Common Questions
Does a baby root canal hurt?
The tooth is fully numbed first, so most children feel pressure and vibration but not pain. Many kids are more bothered by the numb lip afterward than the procedure itself. Nitrous oxide can help anxious children stay relaxed.
Why not just pull the baby tooth?
Baby molars hold space for adult teeth until about age 10 to 12. Pulling one early can let neighboring teeth drift into the gap, which can crowd or block the adult tooth. Saving the tooth also keeps chewing and speech normal.
How long does a pulpotomy take?
Usually 30 to 45 minutes, including placing the crown. In most cases it is done in a single visit.
Does Your Child Have a Toothache?
Our team sees kids of all ages and will take a gentle look, explain exactly what is going on, and help your child feel comfortable every step of the way.