Objective To investigate the therapeutic reason of orthodontic patients in Luzhou. Methods A questionnaire investigation was made for the following randomly chosen people：452 teenage patients from orthodontic department of stomatology hospital affiliated to Luzhou Medical College were brought into treatment group. 600 students from Luzhou No.2 Middle School were brought into non-treatment group. The questionnaire investigation was conducted to two groups. The results were statistically analysed with SPSS 10.0. Results ①The main aim for orthodontic treatment was to align the teeth. ②37.39% of the patients accepted orthodontic treatment for parent′s demand. ③76.1% of the patients expected to align the dentition. ④Most people in treatment group could accept the time and expenses in the orthodontic treatment, but most people of non-treatment group could not accept the expenses in the orthodontic treatment. ⑤Most people thought appearance was important. Conclusion Aesthetic is the main reason for orthodontic patients.
