Maxillary posterior impaction surgery with autorotation of the mandible
Level of evidence: Moderate
Suitable for ages: 16+ years old
Indications: Severe anterior open bite, severe over-eruption of posterior teeth, ideal or increased incisal display, vertical maxillary excess, dental Class II occlusion, down and backward rotated mandible, skeletal open bite/hyperdivergent, convex facial profile
Contraindications: Hypodivergent skeletal type, deep bites, acquired orthodontic or surgical risks
Treatment Objectives and Biomechanics
- Intrude posterior maxilla base
- Autorotation of the mandible forward and upwards
- Reduce anterior open bite
- Reduce or maintain upper incisor display
Appliances / Treatment modalities
- Surgery – maxilla posterior impaction, total maxilla impaction
- Fixed appliances
- Clear aligners
