1. Professor of Fixed Prosthodontics; Aesthetic Dentistry and Dental Implants; Faculty of Dentistry-Jordan University of Science and Technology; Irbid Jordan
2. Private practice in prosthodontics; Amman Jordan
3. Clinical Professor of Prosthodontics; Director-Division of Maxillofacial Prosthetics; Stony Brook University School of Dental Medicine; Stony Brook NY