1. Division of Biomaterials and Biomechanics, Department of Restorative Dentistry, School of Dentistry, Oregon Health and Science University, Portland, OR, USA
2. Center for Regenerative Medicine, Oregon Health and Science University, Portland, OR, USA
3. Department of Biomedical Engineering, School of Medicine, Oregon Health and Science University, Portland, OR, USA
4. Bioengineering Laboratory, Faculty of Dentistry, University of Sydney, Sydney, NSW, Australia
5. Bioclinical Sciences Department, Faculty of Dentistry, University of Kuwait, Kuwait