Panagiotis Kafas1
, Tahwinder Upile2,3
, Nikolaos Angouridakis4
, Christos Stavrianos5
, Nikolaos Dabarakis1
and Waseem Jerjes2,3,6 
1
Department of Oral Surgery and Radiology, School of Dentistry, Aristotle University, Thessalonica, Greece
2
Head and Neck Centre, University College London Hospital, UK
3
Department of Surgery, University College London Medical School, UK
4
Department of ENT, School of Medicine, Aristotle University, Thessalonica, Greece
5
Department of Endodontics, School of Dentistry, Aristotle University, Thessalonica, Greece
6
Unit of Oral and Maxillofacial Surgery, UCL Eastman Dental Institute, UK