Align Technology Inc provides a clear aligner therapy system, intra-oral scanners, and computer-aided design/computer-aided manufacture digital services used in dentistry and orthodontics. The firm operates in two segments: Clear Aligner and scanners and services. The Clear Aligner segment generates the vast majority of revenue and sells the Invisalign System, which uses clear plastic removable orthodontic aligners to treat misaligned teeth. This segment also sells retainers. The scanners and services segment’s key product is the iTero Scanner, an intra-oral scanner that can be used with Invisalign treatment. The iTero platform also can be used with software for restorative or orthodontic procedures. Align receives the majority of its revenue from the United States.