1. Department of Periodontology, Faculty of Dental Medicine University of Hassan II Casablanca Morocco
2. Department of Periodontology and Oral Implantology Temple University School of Dentistry Philadelphia Pennsylvania USA
3. Department of Pedodontics, Faculty of Dental Medicine University of Hassan II Casablanca Morocco
4. Dental Clinic Private Dental Practice Rabat Morocco
5. Department of Oral Surgery, Faculty of Dental Medicine University of Hassan II Casablanca Morocco