1. Biomaterials Group, Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran;
2. Department of Periodontology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran;
3. Department of Textile Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran;
4. Marquette University School of Dentistry, Milwaukee, WI, USA;
5. Dental Biomaterials Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran;
6. Department of Engineering Science, University of Oxford, Oxford, UK