What Is Root Canal Therapy?
Root canal therapy is an endodontic treatment used to treat the inside of a tooth. Inside each tooth is soft tissue called pulp, which contains nerves, blood vessels, and connective tissue. If the pulp becomes infected or inflamed, the tooth may become painful and may eventually need to be removed if it is not treated.
During root canal therapy, the infected or damaged pulp is removed, the inside of the tooth is cleaned and disinfected, and the root canals are sealed. After treatment, the tooth is usually restored with a filling and often a dental crown to protect it from breaking.
The purpose of a root canal is simple: save the tooth, stop the infection, and restore function.
Why Would I Need a Root Canal?
A root canal may be recommended when the inner pulp of the tooth is damaged, inflamed, or infected. This can happen when decay becomes deep enough to reach the pulp, when a crack allows bacteria to enter the tooth, or when the tooth has been injured.
Common reasons for root canal therapy include:
- Deep tooth decay
- Infection inside the tooth
- An abscess near the root tip
- Tooth trauma or injury
- Cracked or fractured teeth
- Repeated dental treatment on the same tooth
- Severe tooth pain from nerve inflammation
- A tooth that may otherwise need extraction
If a root canal can save the natural tooth, it is often a better long-term option than removing the tooth and later replacing it with a bridge, implant, or partial denture.
Signs You May Need Root Canal Treatment
Not every tooth infection causes obvious symptoms at first. Some problems are found during a routine exam or dental X-ray. Other times, symptoms can become intense quickly.
You may need a root canal if you have:
- Severe toothache pain
- Pain when biting or chewing
- Lingering sensitivity to hot or cold
- Swelling around the gums, jaw, or face
- Tenderness near a specific tooth
- A pimple-like bump on the gums
- Darkening or discoloration of a tooth
- A cracked or damaged tooth
- Deep decay close to the nerve
- No symptoms, but infection visible on an X-ray
If you are experiencing swelling, worsening pain, or signs of infection, call our office as soon as possible. Early treatment can help prevent the infection from spreading and may improve the chance of saving the tooth.
Root Canal Therapy vs. Tooth Extraction
Some patients wonder if it would be easier to have the tooth removed. While extraction may be necessary in some cases, saving your natural tooth is often the preferred option when the tooth can be restored.
Keeping your natural tooth can help:
- Preserve normal chewing function
- Maintain bite stability
- Prevent nearby teeth from shifting
- Avoid a visible gap in your smile
- Reduce the need for tooth replacement
- Protect jaw and bite balance
- Maintain a more natural feel when chewing
Removing a tooth may seem simpler at first, but replacing it later can involve additional time, cost, and treatment. During your visit, we will explain whether root canal therapy is a realistic option or if another treatment would be more appropriate.
What to Expect During a Root Canal
A root canal may take one or more appointments depending on the tooth, the severity of infection, and the final restoration needed. Before treatment begins, we will examine the tooth, review any necessary X-rays, and make sure you understand the plan.
Numbing the Tooth
The area is numbed with local anesthetic to keep you comfortable during treatment. If you are anxious, let us know. Our team will explain each step and help you feel as relaxed as possible.
Isolating the Tooth
A small protective sheet called a rubber dam may be placed around the tooth to keep the area dry and clean during treatment.
Removing the Infected Tissue
An opening is made in the tooth so the infected or inflamed pulp can be removed. The root canals are then carefully cleaned and shaped.
Sealing the Tooth
Once the inside of the tooth is cleaned, the canals are filled and sealed with dental material. If another appointment is needed, a temporary filling may be placed until the final step is completed.
Restoring the Tooth
After root canal therapy, the tooth usually needs a permanent restoration. Many back teeth need a crown to protect the tooth from breaking and restore full chewing function.
Will I Need a Crown After a Root Canal?
Many teeth that receive root canal therapy need a crown afterward, especially molars and premolars that handle heavy chewing forces. Once a tooth has had a root canal, it may be more vulnerable to fracture, particularly if it was already weakened by decay, cracks, or large fillings.
A crown helps protect the tooth and restore normal function. Crews Dental West offers same-day CEREC crowns in many eligible cases, which may allow a crown or onlay to be completed in one visit at the Webster Groves office.
If your tooth needs a crown, we will explain your options and help plan the best restoration for long-term strength and comfort.
Is Root Canal Therapy Painful?
Root canal treatment has a reputation for being painful, but most patients are surprised by how manageable the appointment feels. The tooth is numbed before treatment, and the purpose of the procedure is to remove infected tissue that is often causing pain.
After treatment, some soreness or sensitivity is normal while the surrounding area heals. This usually improves as inflammation decreases. We will provide aftercare instructions and let you know what to expect during recovery.
If pain worsens, swelling develops, or your bite feels uneven after treatment, call us so we can evaluate the area.
Endodontic Care With a Whole-Mouth Approach
At Crews Dental, root canal therapy is not viewed as a standalone procedure. We look at the full picture of your oral health, including why the tooth became infected, how your bite affects the tooth, and what restoration will protect it long term.
This may include evaluating:
- Tooth structure and remaining enamel
- Existing fillings or crowns
- Cracks or fractures
- Gum and bone support
- Bite pressure
- Clenching or grinding habits
- Adjacent teeth
- Overall oral health risks
Our goal is to treat the infection and help prevent future problems. This fits our broader philosophy of dental health care, not just disease care.
Protecting Your Tooth After Root Canal Treatment
After root canal therapy, good home care and regular dental visits help protect the treated tooth and the rest of your smile.
To support healing and long-term success, we may recommend:
- Avoiding chewing on the tooth until it is fully restored
- Taking any recommended medication as directed
- Brushing and flossing daily
- Keeping up with dental exams and cleanings
- Placing a crown if recommended
- Wearing a night guard if you clench or grind
- Calling us if sensitivity, swelling, or bite discomfort continues
With proper restoration and maintenance, many root canal-treated teeth continue to function for many years.
Benefits of Root Canal Therapy
Root canal therapy can be an important step in preserving your natural smile.
Benefits may include:
- Relief from infection-related tooth pain
- Preservation of the natural tooth
- Reduced need for extraction
- Protection of bite stability
- Restored chewing function
- Prevention of infection spreading further
- Support for long-term oral health
- A natural feel compared with tooth replacement options
If you are dealing with tooth pain or an infected tooth, root canal therapy may help you keep your smile intact.
