The Alpine F1 team reports that Fernando Alonso has undergone a corrective operation to repair a fracture in his upper jaw. This has been successful and he will stay in hospital for a while under observation. The upper jaw is known as the maxilla and holds the upper teeth and shapes the middle of the face and supports the nose.
The doctors are satisfied with his progress. Alonso should be able to resume training in a few days and the team expects him be fully operational to undertake preparation for the season.
One presumes that somewhere along the way any missing or damaged teeth will also have to be repaired or replaced.