Nadia Kawar1, Sahar Alrayyes2, Haider Aljewari3. 1. Diplomate, American Board of Periodontology, USA; Clinical Associate Professor, Department of Periodontology, College of Dentistry, University of Illinois, USA. Electronic address: kawarnad@uic.edu. 2. Diplomate, American Board of Pediatric Dentistry, USA; Clinical Associate Professor, Department of Pediatric Dentistry, College of Dentistry, University of Illinois, USA. 3. Postgraduate Periodontics Program, College of Dentistry, University of Illinois, USA.