Affiliation: | 1. Department of Periodontics and Community Dentistry, King Saud University, Riyadh, Saudi Arabia;2. Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia;3. Department of Oral Pathology, Faculty of Dentistry, Ziauddin University, Karachi, Pakistan;4. Department of General Dentistry, Eastman Institute for Oral Health, University of Rochester, New York, NY, USA;5. Department of Periodontology, Faculty of Dentistry, Ziauddin University, Karachi, Pakistan |