Robert Stuart McCormick1, James R Adams2. 1. Specialty trainee (ST4) in Oral and Maxillofacial Surgery, Royal Victoria Infirmary, Newcastle upon Tyne NHS Foundation Trust, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP, UK. Electronic address: robertmccormick@nhs.net. 2. Consultant Oral and Maxillofacial Surgery, Royal Victoria Infirmary, Newcastle upon Tyne NHS Foundation Trust, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP. Electronic address: james.adams2@nuth.nhs.uk.