1. Department of Orthodontics; The School and Hospital of Stomatology; Tianjin Medical University; Tianjin China
2. Department of Emergency & Department of General; The School and Hospital of Stomatology; Tianjin Medical University; Tianjin China
3. The Department of Stomatology of First Affiliated Hospital of BaoTou Medical College; Inner Mongolia University of Science and Technology; BaoTou China
4. The College of Stomatology of BaoTou Medical College; Inner Mongolia University of Science and Technology; BaoTou China
5. Department of Maxillofacial Surgery; Tianjin Stomatological Hospital; Hospital of Stomatology; Nankai University; Tianjin China
6. Department of Otorhinolaryngology Head and Neck Surgery; Tianjin First Central Hospital; Tianjin China
7. Department of Prosthodontics; Tianjin Stomatological Hospital; Hospital of Stomatology; Nankai University; Tianjin China