orthodontia

[awr-thuh-don-shuh, -shee-uh]

noun Dentistry.

orthodontics.
treatment for the correction of irregularly aligned teeth, usually involving braces and sometimes oral surgery.

Origin of orthodontia

First recorded in 1840–50; orth- + -odont + -ia

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

1849, from ortho- + Greek odon (genitive odontos) "tooth" (see tooth).