1. Student Research Committee, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
2. Department of Oral and Maxillofacial Diseases, School of Dentistry, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran.
3. Department of Periodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
4. Department of Prosthodontics, Isfahan University of Medical Sciences, Isfahan, Iran.
5. Department of Oral and Maxillofacial Surgery, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
6. Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
7. Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran.
8. Dentistry Research Institute, School of Dentistry, Shahed University, Tehran, Iran.
9. The University of Sheffield, Sheffield, United Kingdom.
10. Department of Prosthodontics, Faculty of Stomatology, Yerevan State Medical University after Mkhitar Heratsi, Yerevan, Armenia.
11. Department of Science and Research, Islimic Azade University, Tehran, Iran.
12. Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA.