1. Department of Endodontics, Dental Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
2. Department of Pharmacology and Toxicology, Faculty of Pharmacy, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran
3. Department of Endodontics, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran
4. Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
5. Department of Endodontics, School of Dentistry, Kurdistan University of Medical Sciences, Sanandaj, Iran
6. Department of Epidemiology, School of Health Research Center for Health Sciences Health Sciences & Technology Research Institute, Hamadan University of Medical Sciences, Hamadan, Iran