Computed tomography (CT) is an imaging technique that uses x-rays to produce cross sectional images of organs and other parts of the body. The Swiss Atlas of Healthcare contains analyses on the frequency of facial skull CT scans overall and separate analyses on inpatient and outpatient settings. The facial skull is the name given to all skull bones that connect fronto-caudally to the neurocranium. This includes the maxilla (upper jaw) and the mandible (lower jaw) as its most salient representatives.