1. Department of Endodontics Faculty of Dentistry, Oral and Craniofacial Sciences King's College London London UK
2. Department of Operative and Preventive Dentistry Charité ‐ University Medicine Berlin Berlin Germany
3. Departamento de Odontología, Facultad de Ciencias de la Salud Universidad CEU‐Cardenal Herrera Valencia Alfara del Patriarca Spain
4. Department of Operative Dentistry University of Parma Parma Italy
5. Department of Prosthodontics Faculty of Dentistry, Oral and Craniofacial Sciences King's College London London UK