row of teeth; dental arch
Technical term used in dentistry and anatomy; in everyday language, 歯並び (はならび) is more common for tooth alignment.
Orthodontic treatment is a therapy to align the row of teeth.
歯列弓の形は人によって異なる。
The shape of the dental arch varies from person to person.
dental arch
orthodontics; orthodontic treatment
Compound of 歯 (tooth) and 列 (row, line).