Root canal retreatment is performed in root canals that are not well cleaned or filled well, where the infection is not resolved. Such situations are very painful and create uncomfortable situations for the patient. Conditions such as night pain, pain in the form of a pulse, swelling in the area corresponding to apex of the tooth and fever around the tooth that had root canal treatment are suspicious issues for root canal treated teeth. Root canal retreatment is more difficult than the operation in a tooth that has not undergone root canal treatment. First of all, the old canal filling in the roots of the tooth must be completely removed. Afterwards, the root canals should be thoroughly washed and cleaned. After the washing and cleaning processes are completed, the channels must be completely filled. For more information about accurate and definitive diagnosis and treatment methods, you can reach us from the Patient Counselor Line.