1. State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University
2. Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University
3. Department of Social Dentistry, Academic Center for Dentistry Amsterdam
4. Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University
5. Department of Orthodontics, West China School of Stomatology, Sichuan University