or·tho·don·tics /-ˈdɑntɪks/
牙齒矯正術
orth·odon·tics /-ˈdɑntɪks/ 名詞
口腔正畸學
orthodontics
n : the branch of dentistry dealing with the prevention or
correction of irregularities of the teeth [syn: orthodontia,
orthodonture, dental orthopedics, dental
orthopaedics]