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Retrognathism
Other names	Retrognathism
A child with Treacher Collins syndrome showing microtia and retrognathism awaiting corrective surgery
Specialty	Medical genetics, dentistry

Retrognathia is a type of malocclusion which refers to an abnormal posterior positioning of the maxilla or mandible, particularly the mandible, relative to the facial skeleton and soft tissues.

A retrognathic mandible is commonly referred to as an overbite, though this terminology is not used medically.

See also

• Micrognathism
• Prognathism

References

1. Chang JZ, Liu PH, Chen YJ, et al. (February 2006). "Thin-plate spline analysis of the effects of face mask treatment in children with maxillary retrognathism". J. Formos. Med. Assoc. 105 (2): 147–54. doi:10.1016/S0929-6646(09)60336-3. PMID 16477335.
2. van Es RJ, Wittebol-Post D, Beemer FA (September 2007). "Oculodentodigital dysplasia with mandibular retrognathism and absence of syndactyly: a case report with a novel mutation in the connexin 43 gene". Int J Oral Maxillofac Surg. 36 (9): 858–60. doi:10.1016/j.ijom.2007.03.004. PMID 17509830.
3. "Retrognathism" at Dorland's Medical Dictionary

External links

• Diagram at brooksideorthodontics.com - see Classification of Face:Class 2 section Archived 2016-04-16 at the Wayback Machine

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