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Not to be confused with Micrognathism.
Classification and external resources
ICD-10 K07.1
ICD-9 524.10
DiseasesDB 34031
MeSH D012182

Retrognathia (or retrognathism) 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]

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

See also[edit]


  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[edit]