1. Faculty of Dentistry, National University of Singapore, 119077 Singapore
2. Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, Michigan 48109, United States
3. Department of Biologic and Materials Science, Division of Prosthodontics, School of Dentistry, University of Michigan, Ann Arbor, Michigan 48109, United States
4. Regenerative Medicine Center Utrecht, 3584 Utrecht, The Netherlands
5. Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 Utrecht, The Netherlands
6. Department of Orthopedics, University Medical Center Utrecht, 3584 Utrecht, The Netherlands
7. Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan Ann Arbor, Michigan 48109, United States
8. Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States