1. Dental Department, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan
2. Dental Department, Taipei Medical University-Shuang Ho Hospital, Taipei, Taiwan
3. Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
4. Department of Oral and Maxillofacial Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
5. School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
6. Department of Dental Technology, Shu-Zen Junior College of Medicine and Management, Kaohsiung, Taiwan