Doctor XU specializes in fixed and invisible orthodontic treatment for adolescents, children and adults, preoperative and postoperative orthodontics for combined surgical treatment. more than 20 years of clinical experience. After graduation, he completed a master's degree in orthodontics and worked in a Grade three hospital for medical treatment and teaching. He has served as a doctor, department director and deputy director in general Grade Three hospitals, stomatological hospitals, universities and private specialized outpatient departments. He advocates the overall concept of comfortable correction, personalized design of treatment plan, and the coexistence of function and aesthetics. Angel and Crypto-Beauty certified doctor, star lingual orthodontics doctor.