Document Type : original article
Authors
1 Assistant Professor, Dep. Of Periodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
2 Professor, Dep. Of Periodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
3 Professor, Dept. of Prosthodontics, School of Dentistry, Mashhad University of Medical Sciences.
Abstract
Keywords