retro" derives from the Latin prefix retro, meaning "backwards

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Retrognathism simply means the jaws i.e. the maxilla, the mandibuble or the both are backward or decrease. Maxillary retrognathism means the maxilla is in a more posterior position with reference to the cranial base. The SNA angle determines whether the maxilla is prognathic, normal or retrognathic. Mandibular retrognathism means the mandible is in a more posterior position with reference to the cranial base, the SNB angle determines whether the mandible is prognathic, normal or retrognathic. —Preceding unsigned comment added by Cecilia Young (talkcontribs) 04:39, 26 September 2008 (UTC)Reply

Merge

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Suggest Merge with Malocclusion