In recent years, there has been a clear trend in dentistry towards minimally invasive restorations, saving as much tooth tissue as possible. In most cases, this is achieved through direct restorations. However, sometimes it’s necessary to restore in an indirect way. Whereas in the past, this often meant that a lot of tooth tissue had to be sacrificed to place a crown, partial restorations such as onlays and overlays have gained popularity because of there minimally invasive nature.