1. Clinical Assistant Professor and Program Director, Department of Orthodontics, State University of New York at Buffalo, Buffalo, NY
2. Lecturer, Department of Preventive Dental Sciences, College of Dentistry, University of Dammam, Saudi Arabia
3. Professor, Orthodontic Graduate Program Director, School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton Clinic Health Academy, University of Alberta, Edmonton, Alberta Canada