1. Department of Oral Implantology and Prosthetic Dentistry; Academic Center for Dentistry Amsterdam (ACTA); University of Amsterdam and Vrije Universiteit; Amsterdam the Netherlands
2. Department of Implantology; West China School of Stomatology; Sichuan University; Chengdu Sichuan China
3. The 2nd Affiliated Hospital of Chengdu Medical College; Nuclear Industry 416 Hospital