1. 1 Eng. A.B. Research Chair for Growth Factors and Bone Regeneration, 3D Imaging and Biomechanical Laboratory, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
2. 2 Department of Dentistry, Al-Farabi Dental College, Riyadh, Saudi Arabia
3. 3 Department of Dentistry, Vita Salute University, San Raffaele Hospital, Milan, Italy
4. 4 Department of Dental Medicine, Stony Brook University, Stony Brook, NY, USA