1. Department of Oral and Maxillofacial Medicine Faculty of Dentistry Guilan University of Medical Sciences Rasht Iran
2. Department of Endodontics Faculty of Dentistry Guilan University of Medical Sciences Rasht Iran
3. Social Determinants of Health Research Center Guilan University of Medical Sciences Rasht Iran
4. Oral & Maxillofacial Medicine Faculty of Dentistry Guilan University of Medical Sciences Rasht Iran