Root Canal Therapy for Children in St. Louis, MO

Inside every tooth is a soft tissue called the pulp – a network of nerves, blood vessels, and cells that keep the tooth alive and healthy. When that pulp becomes infected or severely damaged, pulp therapy removes the infected tissue, relieves pain, and saves the tooth. You may hear this called a baby tooth root canal, a nerve treatment, or pediatric endodontic treatment – but the goal is always the same: protect your child’s smile without losing the tooth.

This is the question we hear most often from parents, and it is a fair one. Baby teeth are temporary, so why not just pull it? The answer is that primary teeth do a lot of important work right now. They guide speech development, support proper chewing, and hold the space permanent teeth need to come in correctly. When a baby tooth is lost too early, nearby teeth can shift, leading to alignment problems and potentially costly orthodontic treatment later.

At our practice, we never recommend treatment your child does not need. If pulp therapy is on the table, it is because saving that tooth is genuinely the best path forward.

Young children often cannot tell you where it hurts or how bad it feels, which makes it important for parents to recognize the signs. Contact our office if your child is experiencing any of the following:

•       Persistent or severe tooth pain, especially when chewing or biting
•       Prolonged sensitivity to hot or cold
•       Swelling, redness, or tenderness in the gums near a specific tooth
•       A tooth that looks darker or more discolored than surrounding teeth
•       A visible bump or abscess on the gum
•       Unexplained irritability or changes in eating habits in younger children

Tooth infections in children do not resolve on their own. Call our office at the first sign of trouble.

Parents often hear these terms used interchangeably, but they describe two distinct procedures:

Pulpotomy vs. Pulpectomy

Pulpotomy – Used when infection has reached the pulp in the crown of the tooth but has not spread into the roots. The infected portion is removed, a medicated material supports healing, and a crown is placed to protect the tooth.

Pulpectomy – Used when infection has traveled into the root canals themselves. The entire pulp is removed, the canals are cleaned and filled with a biocompatible material, and a crown restores the tooth.

Dr. Lenahan and Dr. Robinson evaluate every child individually before recommending either procedure. The recommendation is always based on what is right for that specific child.

A tooth infection does not stay in one place. When endodontic treatment is delayed, the situation tends to escalate:

•       Infection spreads to surrounding teeth and gum tissue
•       Pain and swelling increase over time
•       An abscess can form, creating serious health risks
•       The tooth is lost prematurely, disrupting space for permanent teeth
•       More extensive and expensive treatment becomes necessary

Early intervention changes everything. Treating a child’s tooth infection at the right time is faster, less invasive, and far less stressful than managing one that has been allowed to progress.

Saving the natural tooth is always our first priority. Extraction is considered only when the tooth cannot be saved or when removing it is genuinely the better option for your child’s overall health. Our evaluation looks at how far the infection has progressed, the tooth’s position relative to incoming permanent teeth, and your child’s overall dental and medical history. When extraction is the right call, we will tell you clearly and honestly why – and walk you through what comes next.

Pediatric pulp therapy done well does not just fix a problem today – it protects the foundation of your child’s smile for years to come. Benefits include:

•       Saves the natural tooth and avoids premature loss
•       Relieves pain and eliminates the source of infection
•       Prevents bacteria from spreading to neighboring teeth
•       Preserves the space permanent teeth need to erupt correctly
•       Supports healthy chewing and speech development
•       Avoids more invasive and costly treatment down the road

We remove the mystery from the process so both you and your child feel prepared. Here is what happens during a kids’ dental nerve treatment at our office:

Steps in the Procedure

Examination and Diagnosis – Dr. Lenahan or Dr. Robinson examines the tooth and takes digital X-rays to assess the infection and determine the right treatment.

Comfort Preparation – The area is numbed before anything begins. For anxious children or those with special needs, we offer nitrous oxide, oral sedation, and general anesthesia when appropriate.

Pulp Removal – Infected pulp tissue is carefully removed and the inner space of the tooth is cleaned and disinfected.

Filling and Crown Placement – The cleaned space is filled and sealed, then a durable crown is placed to restore function and protect the tooth.

Throughout every step, our team communicates in calm, age-appropriate language and moves at your child’s pace.

A little preparation at home makes a meaningful difference. We recommend:

•       Using simple, positive language – “the dentist is going to help your tooth feel better”
•       Avoiding words like “hurt” or “needle” and letting our team introduce each step in child-friendly terms
•       Scheduling at a time when your child is well-rested
•       Bringing a comfort item like a favorite small toy or blanket
•       Trusting the team – Dr. Lenahan and Dr. Robinson have extensive experience with anxious children and patients with special needs

Our “no surprises” philosophy applies to kids and parents alike. You will know what is happening, when, and why – every step of the way.

Recovery is typically quick. Most children bounce back faster than their parents expect. For the first 24 to 48 hours, stick to soft foods like yogurt, mashed potatoes, and soup. Avoid hard, crunchy, or sticky foods while the crown settles. Mild sensitivity is normal and usually resolves within a few days. If your child experiences significant pain or swelling, call our office right away.

The total cost depends on whether a pulpotomy or pulpectomy is needed, whether a crown is required, and what your insurance covers. We encourage you to call or text our office for a clear, honest estimate based on your child’s specific situation. What we can say with confidence is that treating an infection early is almost always less expensive than managing the consequences of waiting. Our team is happy to walk through your coverage and discuss options to make care accessible for your family.

Our practice offers something that goes beyond clinical skill – it is a genuinely child-centered experience built on trust, transparency, and board-certified expertise:

•       Dr. Lenahan and Dr. Robinson are both board-certified pediatric dentists with advanced specialty training in treating children from infancy through the late teen years.
•       Our “no assumptions, no surprises, no unnecessary treatments” philosophy guides every recommendation.
•       We have deep experience with children who experience dental anxiety, as well as patients with special needs including Autism and Down syndrome.
•       Our office uses digital X-rays and panoramic imaging for precise, low-radiation diagnostics.
•       We offer a full range of sedation options including nitrous oxide, oral sedation, and general anesthesia.
•       Families throughout the area have trusted our practice for generations – a legacy of care that runs deep.
•       Same-day emergency appointments and an after-hours line connect you directly to a doctor when something urgent comes up.

Your child does not have to stay in pain, and you do not have to figure this out alone. At Lenahan Smiles Pediatric Dentistry, our board-certified specialists are ready to evaluate your child’s tooth, explain your options clearly, and provide the compassionate care your family deserves. Call us, text us, or book your appointment online today.