Surgically assisted rapid palatal expansion
Surgically assisted rapid palatal expansion (SARPE), also known as surgically assisted rapid maxillary expansion (SARME), is a technique in the field of orthodontics which is used to expand the maxillary arch. This technique is a combination of both Oral and Maxillofacial Surgery and Orthodontics.
Source: Wikipedia — Surgically assisted rapid palatal expansion (CC BY-SA 4.0)