Sometimes a tooth that previously had a root canal may fail to heal or become reinfected. When this happens, endodontic retreatment can help save the tooth.
Modern root canal therapy allows dentists to clean the infected canals, disinfect the area, and seal the tooth, preserving the natural tooth structure.
Why Retreatment Is Needed?
Possible reasons include:
Complex canal anatomy missed during initial treatment
Delayed crown placement
New decay exposing the root canal filling
Cracked or damaged restoration
Contamination inside the canal
Sometimes infection can exist without obvious symptoms, which is why dental exams and X-rays are important.
Modern root canal therapy allows dentists to clean the infected canals, disinfect the area, and seal the tooth, preserving the natural tooth structure.
The Retreatment Process
Remove the crown or filling
Remove previous root canal filling material
Clean and disinfect canals again
Refill and seal the canals
Restore the tooth with a new crown
Retreatment offers a second opportunity to save the natural tooth and avoid extraction.
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