Class III malocclusions may originate in a retrognathic maxilla, a prognathic mandible or both. Young patients with class III malocclusion and maxillary hypoplasia are conventionally treated with a protraction facemask in order to stimulate forward growth of the upper jaw. This treatment option is often inducing unwanted side effects including mesial migration of the teeth in the upper jaw and clockwise rotation of the mandible. Because skeletal effects are often difficult to achieve with this approach, more pronounced class III malocclusions cannot be addressed by face mask therapy. These children cannot be treated during childhood and end up in major orthognathic surgery at full-grown age. To be able to treat also the more pronounced class III malocclusion and to minimize dentoalveolar compensations new treatment methods were developed which uses skeletal anchorage.
Age range
7 Years – 14 Years
Sex
ALL
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effect of bone-anchored protraction on maxillary growth in the young child, 1 year with 3D analysis
Timeframe: 1 year
effect of bone-anchored protraction on maxillary growth in the young child, 5 years, with 3D analysis
Timeframe: 5 years