Andresen Activator

Andresen Activator

The activator was designed by Danish dentist Vigo Andresen. It is a passive tooth-borne appliance designed to move the mandible forward for correction of Class II malocclusions and open the bite. It could also direct erupting posterior teeth meaning it could change dental relationships in all three planes of space. 



An example of the Andresen Activator from the BOS Museum collection