1. Department of Prosthodontics, Faculty of Dentistry Tabriz University of Medical Sciences Tabriz Iran
2. Department of Oral and Maxillofacial Surgery, Faculty of Dentistry Tabriz University of Medical Sciences Tabriz Iran
3. Infectious and Tropical Diseases Research Center Tabriz University of Medical Sciences Tabriz Iran
4. Department of Oral Medicine, Faculty of Dentistry Tabriz University of Medical Sciences Tabriz Iran
5. Dental and Periodontal Research Center Tabriz University of Medical Sciences Tabriz Iran