Retrognathism

Not to be confused with Micrognathism.

Retrognathia is a type of malocclusion which refers to an abnormal posterior positioning of the maxilla^[1] or mandible,^[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.

See also

• Micrognathism
• Prognathism