1. Department of Dentistry, Taipei Medical University Shuang Ho Hospital, New Taipei City, Taiwan
2. School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
3. School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
4. Department of Oral Biology & Engineering, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima City, Hiroshima, Japan