Orthodontists want why the patients want orthodontic treatment. Demand and need for orthodontics is very important factors of cooperation and management. Chief complaint would be different according to the race and culture. Our results show that in the control group, Korean female adolescents[chief complaint is cowding(30.6%), spacing(26.5%), upper anterior protrusion(18.4%), anterior cross bite(8.2%) in order. Korean female adolescents considered anterior cross bite is more nonacceptable than spacing and anterior protrusion. The purpose of orthodontics seemed to enhance esthetic, dental health, and to improve oral function.