Hospitalization is not necessary. Microsurgery is comfortable under local anesthesia. Medication can also be prescribed for your well-being.
It consists in raising the gum to expose the infection. The last few millimeters of the tooth are removed from the root, as well as the bone tissue around the infected root. The opening of the root canal is enlarged and then sealed by a biocompatible material. A bone graft may be needed to enhance the healing and the regeneration of the bone. The new bone tissue will be completely formed in 1 to 3 years, depending on the volume of the initial bone defect.
New materials and use of microscope have greatly improved the success rate of such interventions. To avoid any cyst recurrence (usually when root is fractured), a radiographic examination is recommended every six months.