1. Dental Materials Science, Division of Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, 34 Hospital Road, Hong Kong SAR, People’s Republic of China
2. Department of Prosthodontics, Tianjin Stomatological Hospital, No. 75, Dagu Road, Heping District, Tianjin 300041, People's Republic of China
3. Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, 34 Hospital Road, Hong Kong SAR, People’s Republic of China
4. Department of Dental Materials and MRC for Hard-tissue Biointerface, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea