orthodontics
柯林斯詞典
1. N the branch of dentistry concerned with preventing or correcting irregularities of the teeth 畸齒矯正學 (Also called dental orthopaedics)
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orthodontics /???θ???d?nt??/ (also orthodontia)
劍橋詞典
- the job or activity of correcting the position of teeth and dealing with and preventing problems of the teeth
正牙治療，口腔正畸 返回 orthodontics