1. Department of Dental Biomaterials School of Dentistry Tehran University of Medical Sciences Tehran Iran
2. Research Center for Science and Technology in Medicine Tehran University of Medical Sciences Tehran Iran
3. Student Research Commitee, Dental School Shahid Beheshti University of Medical Sciences Tehran Iran
4. Dental Research Center Research Institute of Dental SciencesShahid Beheshti University of Medical Sciences Tehran Iran
5. Periodontist Private Practice Dallas Texas USA
6. Radiation Sciences Research Center Laser Research Center in Medical Sciences Aja University of Medical Sciences Tehran Iran
7. International Network for Photo Medicine and Photo Dynamic Therapy (INPMPDT) Universal Scientific Education and Research Network (USERN) Tehran Iran