Velupillai Ilankovan, BDS, MBBCh, FDSRCS (Edin & Eng), FRCS (Edin & Eng), is a consultant maxillofacial/head and neck surgeon and current Clinical Lead in Maxillofacial Surgery at Dorset County Hospital, UK. He is Professor of Surgery at Bournemouth University and Honorary Professor of Head and Neck Surgery at Peking Union Medical College. Dr. Ilankovan is President-Elect of the British Association of Oral & Maxillofacial Surgeon, 2013–2014, and Honorary Secretary of the Association of Facial Plastic Surgeons. He is also a member of the editorial boards for the British Journal of Oral and Maxillofacial Surgery (expert adviser on Aesthetic Surgery) and the Journal of Maxillofacial and Oral Surgery (section editor for Oncology and Reconstruction). Dr. Ilankovan is an examiner for Part I & II FDS, Edinburgh; MFDS, Edinburgh; MJDF RCS; MRCS (Intercollegiate); and FRCS Maxillofacial (Intercollegiate). He is the author of more than 80 articles in peer-reviewed journals and has given many presentations at conferences across the world. Madan Ethunandan, BDS, MDS (OMFS), FDSRCS (Eng), FFDRCS (Irel), BM (Soton), MRCSEd, FRCS (OMFS), is Consultant Oral & Maxillofacial Surgeon in the Department of Oral & Maxillofacial Surgery, University Hospital Southampton and Honorary Senior Clinical Lecturer, University Hospital Southampton NHS Foundation Trust, Southampton, UK. He is also Visiting Professor at Sri Ramachandra Medical College and Research Institute, Chennai, India. Dr. Ethunandan is a member of the editorial boards of the British Journal of Oral and Maxillofacial Surgery (Expert Advisor – Salivary Gland Diseases), Journal of Maxillofacial and Oral Surgery, Annals of Maxillofacial Surgery and the International Journal of Clinical Implant Dentistry. He is also Module Editor (Surgical Dermatology) for E-Learning for Healthcare (BAOMS/DOH) and a reviewer for a number of leading journals. Dr. Ethunandan is the author of almost 60 publications inpeer-reviewed journals and has given many conference presentations in Europe and India. Tian Ee Seah, BDS, MDS, graduated from the National University of Singapore and went on to gain his Masters in Dental Surgery (Oral Maxillofacial Surgery) from the same university. He is a Fellow of the Royal Australasian College of Dental Surgeons and a Fellow and Council Member of the Academy of Medicine, Singapore. Dr. Seah is current President of the Association of Oral & Maxillofacial Surgeons, Singapore, having previously occupied other positions in the association. He is also a member of the Singapore Dental Association, the Association of Facial Plastic Surgeons (UK) and the Asia Facial Plastic Surgery Society. Dr. Seah currently works as a Consultant with the Singapore National Dental Centre and Orange Orthodontics and Dentofacial Orthopaedics. He has given many presentations at meetings in Singapore and overseas. Dr. Seah is responsible for all the drawings in this highly illustrated book.