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orthodontics

Word family
Related topics: Hospital
or·tho·don·tics /ˌɔːθəˈdɒntɪks $ ˌɔːrθəˈdɑːn-/ noun [uncountableU]  
MHthe skill or job of helping teeth to grow straight when they have not been growing correctly 口腔正畸()
nGRAMMAR: Singular or plural verb?
Orthodontics is followed by a singular verb:
Orthodontics is a good profession.
orthodontic adjectiveadj
 orthodontic treatment
口腔正畸治疗
Origin orthodontics
(1900-2000) ortho- straight (from Greek; → ORTHODOX) + Greek odous tooth
or·tho·don·tics nounn GRAMMAR1
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