Applications
For esthetic improvement of teeth previously restored with metal materials such as gold or amalgam.

For restoring teeth with decay
Lava inlays are usually done when decays is relatively small.  After the cavity is removed, an impression is taken to make a custom-fit lava inlay.

Applications
There is a missing tooth or some empty space in an arch. 
How it’s done.
The two adjacent teeth next to the empty area are prepped. The prepped teeth are restored with lava inlay and the missing area will have an artificial tooth that is supported by the other two teeth. Essentially, it’s a bridge made with lava inlays.