How Many Times Can a Root Canal Be Retreated?

So, you had a root canal, and now that same tooth is acting up again. If your tooth starts hurting again, you might be wondering: Can a root canal be done more than once? The short answer? Yes—but there’s a limit.

Why Would a Root Canal Need Retreatment?

A root canal removes infected tissue inside a tooth and seals it to prevent further issues. But in some cases, retreatment is necessary. Common reasons include:

• Hidden or missed canals: Some canals may not have been fully cleaned the first time.
• New decay: Bacteria can re-enter the tooth if new decay develops.
• Cracked crown or filling: Damage to the restoration can expose the tooth to reinfection.
• Delayed crown placement: Waiting too long for a crown after your root canal can allow bacteria to sneak back in.

How Many Times Can You Redo a Root Canal?

Generally, a root canal can be retreated once, sometimes twice, depending on the tooth. But each retreatment slightly lowers the chances of long-term success. If retreatment doesn’t work, the next step might be an apicoectomy (removing the root tip) or a tooth extraction with a dental implant.

Signs Your Root Canal Might Be Failing

Not sure if your tooth needs another round of treatment? Look out for:

• Persistent pain: Discomfort that lingers long after the tooth should have healed.
• Swelling: Puffiness near the tooth or on your gums.
• Pimple-like bump on gums: This could indicate an ongoing infection.
• Pain when chewing: Even soft foods may cause discomfort.

When Retreatment is Possible:

• The infection is mild and caught early.
• The tooth has enough healthy structure for another procedure.
• The cause of failure can be identified and fixed (such as replacing a faulty crown).

When Extraction May Be Necessary:

• The infection has spread deep into the bone.
• The tooth has multiple fractures or severe decay.
• Past retreatments have failed, and saving the tooth is no longer predictable.

Root Canal Retreatment at Root of Endodontics in Arvada, CO

Every tooth is unique, and the best option depends on the health of the tooth and surrounding bone. At Root of Endodontics in Arvada, CO, Dr. Emmanuel Paguio provides expert evaluations and retreatment options to help patients keep their natural teeth whenever possible.

If you’re experiencing pain or signs of a failed root canal, schedule a consultation today to explore your options!

Image from Authority Dental under CC 2.0

Categorised in: Endodontic Retreatment