1. Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
2. Discipline of Oral Diagnosis and Polyclinics, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong
3. Discipline of Oral Rehabilitation, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong
4. Discipline of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong