Apexification is the procedure needed when apexogenesis fails to restore the health of an injured, immature tooth.
The first part of the process includes removal of all tooth pulp tissue. A medication is placed in the apex to seal off the opening; the root is then filled back up with a hardening material and sealed off, and any damage to the crown is also restored. The pulp will never be restored, but the natural tooth is saved and light monitoring will ensure it stays healthy in your mouth.
Because the tooth is filled with synthetic material and has not yet been as strongly established as the other adult teeth will become, the tooth will be more susceptible to fractures later. But apexification treatment done properly and carefully will lessen this possibility.
Dr. Sperbeck, West Los Angeles