1. Dental Research Center, Dentistry Research Institute, Restorative Dentistry Department, School of Dentistry Tehran University of Medical Sciences Tehran Iran
2. Color Imaging and Color Image Processing Department Institute for Color Science and Technology (ICST) Tehran Iran
3. Restorative Dentist Tehran University of Medical Sciences Tehran Iran
4. Division of Dental Biomaterials, Center for Dental and Oral Medicine, Clinic for Reconstructive Dentistry University of Zürich Zurich Switzerland
5. Dental Research Center, Dentistry Research Institute, Department of Operative Dentistry, Dental School Tehran University of Medical Sciences Tehran Iran