Department of Stomatology;
Union Hospital;
Tongji Medical College;
Huazhong University of Science and Technology;
Key Laboratory of Education Ministry for Image Processing and Intelligent Control;
School of Computer Science and Technology;
Huazhong University of Science and Technology;
Department of Orthodontics;
Peking University School and Hospital of Stomatology and Director;
Research Center of Craniofacial Growth and Development;
cervical; vertebral; maturation; fast; marching; method; parabolic; curve; fitting; landmark; ac-curacy; repeatability;