Palmer notation
Palmer notation (sometimes called the military system) is a dental notation system (tooth numbering system) named for 19th-century American dentist Corydon Palmer from Warren, Ohio. Despite the adoption of the FDI World Dental Federation notation (ISO 3950) in most of the world and by the World Health Organization, the Palmer notation continued to be the overwhelmingly preferred method used by orthodontists, dental students and practitioners in the United Kingdom as of 1998.