noun
orthodontics; orthodontic treatment
Medical term for the correction of misaligned teeth and jaws, often involving braces.
歯列矯正を始めてから、歯磨きが大変になった。
Since starting orthodontic treatment, brushing my teeth has become more difficult.
彼女は歯列矯正のために月に一度歯科医院に通っている。
She visits the dental clinic once a month for orthodontic treatment.
Compound of 歯列 (しれつ, 'row of teeth') and 矯正 (きょうせい, 'correction').