1. Department of Cariology Restorative Sciences and Endodontics School of Dentistry University of Michigan Ann Arbor MI 48109 USA
2. Department of Restorative Dental Sciences School of Dentistry Jazan University Jazan 45142 Kingdom of Saudi Arabia
3. Department of Biostatistics School of Medicine Indiana University Indianapolis IN 46202 USA
4. Department of Mechanical Industrial and Manufacturing Engineering University of Toledo Toledo OH 43606 USA
5. EEC Division Directorate of Engineering The National Science Foundation Alexandria VA 22314 USA
6. Regenerative Medicine Center University Medical Center Utrecht Utrecht 3508 The Netherlands
7. Department of Orthopedics University Medical Center Utrecht Utrecht 3508 The Netherlands
8. Department of Clinical Sciences Faculty of Veterinary Medicine Utrecht University Utrecht 3584 The Netherlands
9. Department of Biomedical Engineering College of Engineering University of Michigan Ann Arbor MI 48109 USA