1. Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology
2. National Center of Stomatology
3. National Clinical Research Center for Oral Diseases
4. National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, PR China
5. Department of Oral and Maxillofacial Trauma and Orthognathic Surgery, The First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatological Hospital), Urumqi Xinjiang, PR China