EARLY TREATMENT OF CLASS II DIVISION 1 MALOCCLUSION USING TWIN BLOCK APPLIANCES: A CASE REPORT

Background: Malocclusion is dentofacial growth deviation from its normal size and shape, thus causing abnormal occlusion. One of etiology heredity. Removable twin block, a functional appliance that can be used in interceptive orthodontic treatment, to treat Class II malocclusion with large overjet children during skeletal development. Case: An 11-year-old boy came pediatric dental specialist clinic division 1 Angle (SNA 82°; SNB 74°; ANB 8°, CVM CS 4, 14 mm, overbite 7 convex profile). block for was chosen as the therapy. Case management: acrylic occlusal bite on maxilla mandible separately. angle 70° made which based registration wax centric This device 24-hours day. Monthly visit done reduce maxillary mandibular blocks. After 9 months, an 5 mm obtained. Cephalometry calculations became SNA °; 3 °. The patient given further phase 2 treatment fixed appliance. Conclusion: With proper case selection good cooperation, removable correct malocclusion, improve facial profile, overbite, molar relations.