1. Department of Prosthodontics, School of Dentistry The University of Jordan Amman Jordan
2. Department of Prosthodontics The City of London Dental School London UK
3. Department of Pediatric Dentistry and Orthodontics Sciences College of Dentistry, King Khalid University Asir–Abha Saudi Arabia
4. General Dental Practitioner, Private practice Amman Jordan
5. De Montfort University Leicester UK