1. Department of Prosthodontics, René Descartes University, Paris, France
2. Private Practice, 62 Boulevard de la Tour Maubourg, 75007 Paris, France
3. Department of Prosthodontics, Beirut Arab University, Beirut, Lebanon
4. Department of Prosthodontics, Lebanese University, Beirut, Lebanon
5. Former Clinical Associate, Louis Mournier Hospital, Colombes, France
6. Department of Removable Prosthodontics, Saint-Joseph University, Beirut, Lebanon