Affiliation: | ∗ Assistant Professor, Dental Research Center, Oral and Maxillofacial Department, Mashhad University of Medical Sciences, Mashhad, Iran;† General Dentist, Oral and Maxillofacial Department, Mashhad University of Medical Sciences, Mashhad, Iran;‡ Dentistry Student, Member of the Student Research Committee, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran |