As occasionally happens with any dental or medical procedure, a tooth may not heal as expected after initial treatment for a variety of reasons:
In other cases, a new problem can jeopardize a tooth that was successfully treated. For example:
The endodontist will reopen the tooth to gain access to the root canal filling material. In many cases, complex restorative materials – crown, post and core material – must be disassembled and removed to permit access to the root canals.
After removing the canal filling, the endodontist can clean and canals and carefully examine the inside of your tooth using high magnification and illumination, searching for any additional canals or unusual anatomy that requires treatment.
After cleaning the canals, the endodontist will fill and seal the canals and place a temporary filling in the tooth. If the canals are unusually narrow or blocked, your endodontist may recommend endodontic surgery.
After the retreatment is completed, you will need to return to your dentist as soon as possible to have a new crown or other restoration placed on the tooth to protect and restore it to full function.