Retrognathia is a type of malocclusion which refers to an abnormal posterior positioning of the maxilla[1]ormandible,[2] particularly the mandible, relative to the facial skeleton and soft tissues.[3]
| Retrognathism | |
|---|---|
| Other names | Retrognathism |
 | |
| A child with Treacher Collins syndrome showing microtia and retrognathism awaiting corrective surgery | |
| Specialty | Medical genetics, dentistry |
A retrognathic mandible is commonly referred to as an overbite, though this terminology is not used medically.
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