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When Does a Cracked Tooth Need a Root Canal?

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11/14/2026

A cracked tooth doesn’t always hurt right away. You might feel a sharp twinge while chewing or notice that cold drinks suddenly sting. Because cracks can spread deeper over time, the damage may reach the inside of the tooth. 

So when does a cracked tooth need a root canal? A root canal is usually needed once the crack reaches the pulp, the soft inner tissue that holds the tooth’s nerve and blood supply. Signs include lingering pain, pain when biting, temperature sensitivity, gum swelling, and tooth discoloration. 

At Memphis Endodontics in Memphis, Bartlett, Oakland, Arlington, Munford, Collierville, and Lakeland, TN, our specialists provide root canal therapy that eases discomfort and helps save your natural tooth. Call today to schedule a consultation. 

Why teeth crack in the first place 

Teeth are tough, but they aren’t indestructible. Chewing ice, cracking nuts with your teeth, or crunching hard candy is a frequent cause. Clenching or grinding, often during sleep, puts constant strain on the enamel and can create tiny fractures that grow over time. 

Large fillings can weaken the surrounding tooth structure and make it more likely to break. Teeth also become more brittle with age, and injuries from sports or falls can cause a cracked tooth in an instant. Sometimes the damage is extensive enough to require root canal therapy in Memphis. 

Signs your cracked tooth needs a root canal 

Not every crack requires a root canal. However, once bacteria and inflammation reach the pulp, endodontic treatment is often the best way to save the tooth. Watch for:  

  • Lingering pain: Tooth pain that continues after a meal or disturbs your sleep can point to an inflamed nerve. 
  • Pain when biting: A sudden jolt of pain as you chew, especially when you let go of a bite, is a classic sign of a crack. 
  • Temperature sensitivity: A tooth that stays sensitive after you finish a hot or cold drink may have damage to the pulp. 
  • Gum swelling: Swollen gums or a pimple-like spot along the gumline can mean an infection has formed. 
  • Tooth discoloration: A tooth that turns gray or darker than its neighbors may have a damaged nerve. 

When a fracture runs down into the root or divides the tooth, saving it may not be possible. That’s why prompt care matters. 

How root canal therapy is performed in Bartlett, TN 

Your procedure begins with local anesthesia, and sedation is available if you feel anxious. A thin protective barrier keeps the area clean and dry while we work. 

Next, we create a tiny access point in the chewing surface so the damaged pulp can be removed. The canals are cleaned, shaped, and disinfected with specialized instruments, then filled and sealed. A temporary filling closes the opening until your general dentist adds a crown, which helps hold a cracked tooth together. 

Most patients say root canal therapy feels no more uncomfortable than having a cavity filled. The tooth may be tender for a few days, but the tooth pain that brought you in usually improves quickly. Any swollen gums typically go down as the infection clears. Patients throughout Memphis, Bartlett, Oakland, Arlington, Munford, Collierville, and Lakeland, TN trust our team for gentle endodontic treatment. 

Act early to save your tooth 

A crack can get worse quickly, but early care gives you the best chance of keeping your natural tooth. At Memphis Endodontics in Memphis, Bartlett, Oakland, Arlington, Munford, Collierville, and Lakeland, TN, our specialists can determine whether you need endodontic treatment and explain every step. Don’t wait for symptoms like swollen gums or tooth pain that lingers. Call today to schedule a consultation.

Painless root canal. Dr Wells is fast, patient and informative. If I had to have one I am glad I was referred to him!

M.K. Google

I really appreciate Dr Scott & his supportive staff. They are professional, compassionate and very knowledgeable. I appreciate a conservative approach addressing my dental issues & listening first, before deciding a game plan. However, Dr Scott is fully capable of further action, should it become necessary. If I had to undergo a root canal, I am very grateful that Dr Scott and his staff are the ones managing my care.I highly recommend their services.

R.O. Google

Excellent service, employees were nice and Dr Wells did a good job and no problems with the root canal.

D.K. Google

I would recommend the Collierville location to my closest family members!! The Dr. and office staff are amazing. If I could give 10 stars I would.

M.H. Google

Awesome experience. Great staff, great service

D.H. Google

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