This International Standard provides a system for designating the location of an implant body within a jaw, and is intended for use with the scheme described in ISO 3950, Dentistry — Designation system for teeth and areas of the oral cavity. It does not in itself indicate whether the device is visible within the oral cavity or the presence of transmucosal components or implant restorations. Since the system describes location but not restoration form, it is not necessary to use the quadrant designation numbers 5-8 which are employed when indicating a primary tooth. This information should be recorded by the responsible clinician in the patient’s file and made available to the patient by the clinician(s) who provided the care.