1. Faculty of Dentistry, Selçuk University, Konya, Turkey;
2. Department of Oral Biology and Maxillofacial Pathology, School of Dentistry, Medical College of Georgia, Augusta, GA 30912-1129, USA; and
3. Pediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Pokfulam, 34 Hospital Road, Hong Kong SAR, China;