Resumen de Northcroft Memorial Lecture 2007. A century of progress: advances in orthodontics since the foundation of the British Society for the Study of Orthodontics

• The British Orthodontic Society invites outstanding contributors from the field of Orthodontics to give the guest lecture in memory of George Northcroft. In 2007 the guest lecturer was Professor Murray C. Meikle. The article that follows was presented as the Northcroft Memorial Lecture 2007 at the British Orthodontic Conference, Harrogate, UK, 24th September 2007.