Resumen de The William Houston Medal of the Royal College of Surgeons of Edinburgh 2005

• This paper describes the orthodontic treatment of two cases that were presented by the winner of the William Houston Medal at the Membership in Orthodontics examination of the Royal College of Surgeons Edinburgh in 2005. The first case presentation is a Class II division 1 malocclusion treated by a combination of functional appliance and fixed appliance treatment and the second case presentation is a Class III malocclusion treated by a combination of fixed appliance treatment and orthognathic surgery.