Extraction may seem like the only solution when a tooth is severely infected. However, a Knoxville root canal can give it a second life. By removing the infected or damaged pulp (that is, the soft tissue inside a tooth), a dentist can stop the infection and ensure a healthy environment to build a reliable restoration.
More often than not, this restoration takes form in a dental crown—because they’re stronger, more durable, and help recover more damaged structure. But are dental crowns always a must after root canal therapy?

How Root Canal Therapy Impacts Your Tooth
A root canal is a procedure that removes any infected tissue from inside your tooth, disinfects the space, and seals it to prevent future infection. While this saves the tooth, it also leaves it weaker, brittle, and prone to cracking or breaking, especially in the case of molars and premolars, which endure a lot of chewing force.
For that reason, teeth that have had a root canal are at high risk of fracturing without the support of a crown. While these cracks start tiny and unidentifiable, they can grow over time, leading to pain, infection, or even tooth loss.
A crown restores the tooth to its natural shape, size, and strength, allowing you to chew comfortably without worrying about damaging it. It prevents future damage and helps extend the life of the treated tooth.
What Happens If I Don’t Get a Crown After Root Canal Therapy?
There are several risks that could compromise the long-term success of your treatment—and even lead to losing the tooth—if you don’t get a crown after root canal therapy. Some of these include:
- As mentioned, teeth are weaker and more brittle after a root canal. Without a crown to protect them, they are more likely to crack or break.
- If you place a filling—which is more brittle than a dental crown—there are more chances of bacteria re-entering the tooth through small openings or cracks. A crown seals the tooth completely, helping to prevent new infections.
- If the tooth cracks or gets reinfected badly enough, it may no longer be savable, making extraction the only solution.
- Root canal-treated teeth are more vulnerable to wear and erosion because they lack a living pulp to nourish them.
Over time, root canal-treated teeth often become discolored or appear darker. A crown not only protects the tooth but also maintains a natural-looking color, improving your smile and self-confidence.
Are Crowns Always Needed After a Root Canal?
Not always. Front teeth (like incisors and canines) don’t endure as much pressure when chewing, so if they remain strong and are not cracked, your dentist may recommend just a filling or other restoration. But for most back teeth, a crown is highly recommended.

Get a Same-Day Crown After Your Knoxville Root Canal
A dental crown after a root canal isn’t just about looks—it's about protecting your investment, preventing future problems, and restoring the tooth's strength and function. It’s a key final step in making sure your treated tooth lasts for many years to come.
At Brian Rich DMD, we offer same-day crowns, so you don’t have to wait long for a permanent restoration after your root canal therapy. Want to learn more? Contact us today to schedule an appointment!