1. School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2. Marquette University School of Dentistry, Milwaukee, WI, USA
3. Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
4. School of Advanced Technologies in Medicine, Shahid Beheshti University Medical Sciences, Tehran, Iran
5. Institute for Color Science and Technology, Tehran, Iran