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English definition of “orthodontics”

orthodontics

noun [U]     /ˌɔː.θəˈdɒn.tɪks/ US  /ˌɔːr.θoʊˈdɑːn.t̬ɪks/ specialized
the job or activity of correcting the position of teeth and dealing with and preventing problems of the teeth DentistryThe teethProblems with bones, joints and teeth orthodontic     /-tɪk/ US  /-t̬ɪk/ adjective [before noun] Does she need orthodontic treatment to have her teeth straightened ?DentistryThe teethProblems with bones, joints and teeth
(Definition of orthodontics noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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