1. Craniofacial Research Center, Department of Dental Materials, Azad University, Tehran, Iran.
2. Kamal Asgar Research Center, Tehran, Iran.
3. College of Dentistry, University of Tennessee, Memphis, Tennessee.
4. Research Center for Pharmaceutical Nanotechnology and Department of Endodontics, Dental Faculty, Tabriz University (Medical Sciences), Tabriz, Iran.
5. Department of Dental and Endodontic Biomaterial, Kamal Asgar Research Center, Tehran, Iran.