1. Senior Lecturer in Periodontology, Sir John Walsh Research Institute, Department of Oral Sciences, Faculty of Dentistry; University of Otago; Dunedin New Zealand
2. Head of Prosthetic Section, Ras Al-Khaimah Dental Center; Ministry of Health; Ras Al-Khaimah United Arab Emirates
3. Professor in Periodontology, Sir John Walsh Research Institute, Department of Oral Sciences, Faculty of Dentistry; University of Otago; Dunedin New Zealand