N. Ivanova¹, M. Dinkova²

¹ MMD Dental Center of Orthodontics, Sofia

² Department of Orthodontics, FDM, MU- Sofia

Class II/2 Angle malocclusion is characterized by combination of deep bite, retroclined incisors and distal occlusion in the lateral segments.

Aim: The aim of the current study is to follow the correction of dental Class II/2 Angle in patient with skeletal class I malocclusion, treated with Myobrace ^TM system.

Materials and methods: Boy, 10-year-old, with early mixed dentition, dental Class II/2, skeletal class I malocclusion and hypodivergent pattern of growth. After the full orthodontic analysis was made, a treatment with Myobrace myofunctional appliances was started. The treatment progress included preliminary Trainer for Adults (T4A) appliance for 11 months and Myobrace (MB) appliance for 13 months – active wearing (every night and 1 to 4 hours during the day). After that a passive wearing regime of MB appliance was recommended (2 times weakly) until the permanent dentition is formed.

Results: In the 5-year follow-up period a correction of Class II/2 Angle malocclusion and deep bite was established. The tooth arches and facial profile of the patient were harmonized. A stable result without fixed retainer application was achieved. The function and aesthetics of the patient were improved.

Conclusion: Myofunctional appliances of Myobrace^TM system are successfully applied for treatment of dental Class II/2 Angle in patients with skeletal class I malocclusion and early mixed dentition.

Keywords: Myobrace^TM, Class II2 Angle, deep bite