歯し科か矯きょう正せい学がくMeaningsNoun1. orthodontics; orthodontiaKanji used歯tooth科department矯fix a flaw正correct学studyComposed of歯し科かdentistryNoun矯きょう正せいcorrection (of a fault, defect, flaw, etc.); remedy; rectification; redress; reform; straightening (of teeth)Noun学がくlearning; scholarship; study; erudition; knowledge; education; study of ...; -ology; -icsNoun