Class II Anterior Open Bite Malocclusion Treated with Fixed Functional Appliance: A Case Report

Most common properties of Class II malocclusion are mandibular retrusion, rather than maxillary prognathism. Thus, among the numerous orthodontic appliances introduced to treat Class II malocclusion functional orthopedic appliances are widely used. Fixed functional appliances can be classified into rigid and flexible. The Forsus Fatigue Resistant Device (FRD) is an alternative appliance for treating Class II malocclusion. This case report describes 18 year old female patient with the class II skeletal and dental malocclusion with anterior open bite mainly due to the habit of prolong thumb sucking. Accordingly, the treatment plan comprises of orthodontic treatment employed with fixed function appliance (Forsus device), habit breaking tongue crib and box elastics and completion of case with fixed orthodontic treatment with MBT 0.022” slot prescription to obtain a normal occlusal relationship, overjet and overbite. The case finished with a normal and a stable occlusion between the maxillary and mandibular arches with adequate width of attached gingiva. Key words: Class II Malocclusion, Open Bite, Fixed Functional, Forsus.