Affiliation: | ∗ Senior Resident, Department of Oral and Maxillofacial Surgery, Fourth Military Medical University School of Stomatology, Xi''an, China;† Resident, Department of Oral and Maxillofacial Surgery, Jiamusi University School of Stomatology, Jiamusi, China;‡ Senior Resident, Department of Pediatric Dentistry, Fourth Military Medical University School of Stomatology, Xi-an, China;§ Associate Professor, Department of Oral and Maxillofacial Surgery, Fourth Military Medical University School of Stomatology, Xi''an, China;|| Senior Resident, Department of Oral and Maxillofacial Surgery, Fourth Military Medical University School of Stomatology, Xi''an, China;¶ Professor, Department of Oral and Maxillofacial Surgery, Fourth Military Medical University School of Stomatology, Xi''an, China;# Professor, Head of Department, Department of Oral and Maxillofacial Surgery, Fourth Military Medical University School of Stomatology, Xi''an, China |