Acknowledgements Many thanks to those indivuduals who have translated the PCI into other languages. Files: Chinese Version - Dr Winnie WS Choi, The University of Hong Kong Greek Version - George Linardoutsos, Greek Anticancer Institute, Athens. Malay Version - Dr Jennifer G Doss, Dental Faculty, University of Malaya. Mandarin Version - Dr Grace Ho Serbian Version - Prof Dr Zoran Pesic, Professor of Maxillofacial Surgery, University of Nis Medical School, Nis, Serbia PCI Dutch Version Portuguese Version - Ivy Jungerman, São Paulo, Brazil Arabic Version - Dr Samana Hussain Urdu Version - Dr Samana Hussain German Version - Dr. Sebastian Herkenhoff, University of Münster Spanish Version - Dr Ana Otero Rico, University Hospital A Coruña French Version - Sami Moubayed Polish Version - Mateusz Kolator Tamil Version - Sivaraman & Mahalakshmy, Jawaharlal Institute of Postgraduate Medical Education and Research, India UW-QOL - Tamil Version - Sivaraman & Mahalakshmy, Jawaharlal Institute of Postgraduate Medical Education and Research, India UW-QOL - Tamil with scores - Sivaraman & Mahalakshmy, Jawaharlal Institute of Postgraduate Medical Education and Research, India