Root canal therapy is a dental procedure that treats infection or damage inside a tooth by removing the inflamed or infected pulp, cleaning and disinfecting the inside of the tooth, and sealing it to prevent further infection. Despite its reputation, modern root canal therapy is no more painful than getting a routine filling — and it actually relieves the pain caused by the infection. A root canal saves a natural tooth that would otherwise need to be extracted. Learn more about root canal therapy at Smile Makers.
What Is a Root Canal?
Inside every tooth, beneath the hard outer enamel and dentin, is a soft tissue called pulp. The pulp contains nerves, blood vessels, and connective tissue that nourish the tooth as it develops. When this pulp becomes infected or inflamed — usually due to deep decay, a crack, or trauma — it can cause significant pain and, if left untreated, lead to an abscess or tooth loss.
"Root canal therapy" refers to the procedure of removing that damaged pulp, cleaning the inner chamber and canals of the tooth, and sealing it to prevent reinfection. The term "root canal" technically refers to the natural cavity within the tooth where the pulp lives.
Signs You May Need Root Canal Therapy
Several symptoms can indicate that the pulp inside a tooth is infected or damaged and may require root canal therapy:
- Persistent tooth pain, especially deep in the tooth or when chewing
- Prolonged sensitivity to hot or cold that lingers after the source is removed
- Swelling or tenderness in the gums near the affected tooth
- A pimple-like bump on the gums (a sign of infection draining)
- Discoloration or darkening of the tooth
- A cracked or chipped tooth that has exposed the pulp
Keep in mind that some infected teeth cause no symptoms at all, which is why regular checkups and dental X-rays are important for catching problems early. If you're experiencing severe pain or swelling, it may be a dental emergency — contact your dentist right away.
The Root Canal Therapy Procedure, Step by Step
Modern root canal therapy is a straightforward, comfortable procedure typically completed in one or two visits:
1. Examination and X-Ray
Your dentist examines the tooth and takes an X-ray to assess the extent of the infection and map the shape of the root canals.
2. Local Anesthesia
The area around the tooth is fully numbed with local anesthesia, so you won't feel pain during the procedure. For anxious patients, sedation options like nitrous oxide are available.
3. Accessing the Pulp
A small opening is made in the top of the tooth to access the infected pulp chamber and canals.
4. Removing the Infected Pulp
Using specialized instruments, the dentist carefully removes the damaged pulp and cleans out the canals.
5. Cleaning and Disinfecting
The inside of the tooth is thoroughly cleaned, disinfected, and shaped to prepare it for filling.
6. Filling and Sealing
The cleaned canals are filled with a biocompatible material called gutta-percha and sealed to prevent reinfection.
7. Restoring the Tooth
In most cases, a tooth that has had a root canal needs a dental crown to protect it and restore full function, since the tooth becomes more brittle after treatment.
Does Root Canal Therapy Hurt?
This is the most common concern patients have — and the good news is that modern root canal therapy is no more painful than getting a routine filling. The procedure is performed under local anesthesia, so you shouldn't feel pain during treatment. In fact, root canal therapy relieves the pain caused by the infected pulp.
Some mild soreness or sensitivity for a few days afterward is normal and can usually be managed with over-the-counter pain relievers. The outdated reputation of root canals as painful comes from a time before modern anesthesia and techniques. To learn more, read our article on the truth about modern root canals.
Root Canal Recovery
Recovery from root canal therapy is typically quick and straightforward. Most patients return to normal activities the same day or the next day. During the first few days:
- Mild soreness or sensitivity is normal and manageable with over-the-counter pain relievers
- Avoid chewing on the treated tooth until it's fully restored with a permanent crown
- Maintain good oral hygiene, brushing and flossing gently around the area
- Contact your dentist if you experience severe pain, swelling, or an uneven bite
Once your tooth is restored with a permanent crown, it can function just like a natural tooth for many years — often a lifetime with proper care.
What Happens If You Don't Treat an Infected Tooth?
Ignoring an infected tooth doesn't make the problem go away — it allows the infection to worsen. Over time, an untreated infection can lead to:
- A painful dental abscess
- Spread of infection to surrounding teeth, gums, and jawbone
- Bone loss around the tooth
- The need for tooth extraction and more extensive, costly restorative work
Root canal therapy is designed to stop this progression and save your natural tooth, which is almost always preferable to extraction and replacement.
Why Save a Natural Tooth?
Dentists prioritize saving natural teeth whenever possible because nothing functions quite like your own tooth. Keeping your natural tooth helps you maintain efficient chewing, normal biting force, and natural appearance, while preventing the surrounding teeth from shifting. While replacement options like dental implants and bridges are excellent when needed, preserving your natural tooth through root canal therapy is usually the best long-term outcome.
Schedule Root Canal Therapy in Fort Worth
Smile Makers Family and Cosmetic Dentistry provides gentle, comfortable root canal therapy for patients across Fort Worth and the surrounding communities of Tanglewood, TCU/Westcliff, Westover Hills, Clearfork, and Fairmount. Dr. Caitlin Flosi and our compassionate team prioritize your comfort at every step, with sedation options available for anxious patients.
If you're experiencing tooth pain, don't wait — call Smile Makers at (682) 204-4442 today.

