![](https://i0.wp.com/theorthoguide.org/wp-content/uploads/2021/03/Class-III-bollard-plate-front.jpeg?resize=348%2C233&ssl=1)
Example appliance: Class III elastics on Bollard miniplates for bone-anchored maxillary protraction
Level of evidence: Weak
Suitable for ages: 12-14 years old
Indications: Maxilla retrognathic Class III skeletal base, high-angle mandibular plane, Class III dental malocclusion
Contraindications: Mandible prognathic Class III skeletal base, low-angle mandibular plane, low-density basal bone at sites of bone plates
Treatment Objectives and Biomechanics
- Orthopaedic protraction of maxilla
- Restraint of mandible forward growth
Appliances
- Skeletal anchorage – Bollard miniplates, TADS
- Fixed appliances