| Affiliation: | 1. Postgraduate, Tianjin Medical University, Tianjin, China;2. Postgraduate, Tianjin Medical University, Tianjin, China;3. Postgraduate, Tianjin Medical University, Tianjin, China;4. Clinical Associate Professor, Department of Operative Dentistry and Endodontics, Tianjin Stomatological Hospital, Tianjin, China;6. Professor, Department of Oral and Maxillofacial Surgery, Tianjin Stomatological Hospital, Tianjin, China;5. Clinical Professor, Department of Oral and Maxillofacial Surgery, Tianjin Stomatological Hospital, Tianjin, China |
