Activator & Its modification

Activator appliance is a monobloc loose fitting appliance initially indicated in patients who are growing. Patients aged 8 to 12 years with growth potential show the best results to this appliance. In addition, this appliance is also indicated in patients with retrognathic mandible, or a combination of retrognathic mandible and prognathic maxilla with almost well aligned maxillary and mandibular dentition. Some of the malocclusions that can be treated with this appliance included Class II Division I, Class II Division II, Class III and Open Bite.Thisappliance can be given as a retention plate for class 2 treated patient.

• Duration of wear : 12 to 14 hrs
• Treatment duration : 8 to 12 months
• Combination of activator with high pull head gear is mostly suggested.

DURATION REQUIRED FROM LAB : 3 days

REQUIREMENT FOR LAB : Upper and lower( type 3) dental stone models without voids made from good alginate impression. Wax bite registered with mandible advancement of 5mm and vertical opening of 4-5 mm.