Abstract
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.
Acknowledgments
The author and publisher are grateful to all those individuals and organizations who have granted permission to reproduce pictures. Every effort has been made to obtain permission to use copyright material but if for any reason a request has not been received, the copyright holder should contact the publisher.
Notes
Invited paper