"ACTIVATOR: SIMPLE YET EFFECTIVE FUNCTIONAL APPLIANCE FOR SKELETAL CLASS II CORRECTION: CASE REPORT"

A Class II malocclusion may result from a mandibular deficiency, maxillary excess or a combination of both, but the most common finding is mandibular skeletal retrusion. Functionaljaw orthopaedic appliances are designed to encourageadaptive skeletal growth by maintaining the mandible in a corrected forward position. The activatordeveloped by Andresen is one of the most widely used. A 12-year-old boy with skeletal Class II malocclusion, a low mandibular planeangle was treated with growth modulation by activator followed by fixed orthodontics for detailing of occlusion.The major effects of the activator treatment in this case has been due to increase in condylar growth and in mandibular base length.Further non-extraction fixed orthodontic treatment for proper interdigitation of the dentition also help to maintain the stability of the satisfactory results achieved in this type of cases.