A root canal is designed to remove infected or damaged tissue from inside a tooth and seal it to prevent future infection. While root canals are highly effective, they can sometimes fail due to various factors, such as:
- Persistent Infection
In some cases, the infection may persist even after a root canal has been completed. This can happen if the tooth’s internal structures are particularly complex or if bacteria re-enter the tooth. - Cracks or Fractures in the Tooth
If the tooth cracks or fractures after a root canal, bacteria can enter the tooth and cause reinfection, leading to the need for extraction. - Missed Canals
Occasionally, a root canal may fail because an additional root canal was missed during the procedure. This can result in lingering infection that cannot be resolved without extraction. - Compromised Tooth Structure
If the structure of the tooth has been too weakened by decay, infection, or the root canal procedure itself, the tooth may not be stable enough to function properly, requiring extraction.
If you’ve had a root canal and continue to experience pain, swelling, or infection, it may be necessary to remove the tooth to prevent further complications.