orthodontia vs. orthodontics
[awr-thuh-don-shuh, -shee-uh]
/ ˌɔr θəˈdɒn ʃə, -ʃi ə /
noun
Dentistry.
-
treatment for the correction of irregularly aligned teeth, usually involving braces and sometimes oral surgery.
[awr-thuh-don-tiks]
/ ˌɔr θəˈdɒn tɪks /
noun
(used with a singular verb)
