訓 た(める) ・ 音 キョウ
Sino-Vietnamese: kiểu
Arrow 矢 gives the meaning and 喬 gives the sound: straightening the shaft of an arrow, hence to correct.
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
歯の矯正を始めた。 (はのきょうせいをはじめた)
I started orthodontic treatment.