1. Department of Oral Implants, School of Stomatology, State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, The Fourth Military Medical University, Xi’an, China
2. Department of Oral Surgery, 920th Hospital of Joint Logistics Support Force, Kunming, China
3. Department of Implant Dentistry, College of Stomatology, Xi'an Jiaotong University, Xi’an, China