The restoration or direct conservation is the discipline that deals with the restoration of the teeth, directly in the chair and, in general, in a single session.
It is reserved for all those cases in which, as a result of caries or fracture, one or more teeth are in need of restoration, in form and function. The material most frequently used today is the composite that combines excellent aesthetic characteristics (it is camouflaged with the natural tooth) with great qualities of strength and functionality. The advantage of this technique is that the tooth is cured and restored in a single session. It is used both on the front teeth and on the posterior ones, with excellent results.
The following are a series of cases dealt with directly.
The central right incisor presents the oldest and discolored restoration.
Note how, once the old restoration has been removed, the residual tooth has a color that is absolutely superimposable to the others. The discoloration was only of the old material.