1. Division of Dentistry, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PL, UK
2. Department of Restorative Dentistry, College of Dentistry, Taibah University, Madinah 42313, Saudi Arabia
3. Department of Engineering, Manchester Metropolitan University, Manchester M1 5GD, UK
4. Department of Dental Health, College of Applied Medical Sciences, King Saud University, Riyadh 12372, Saudi Arabia
5. School of Dentistry, University of Jordan, Amman 11942, Jordan