apertognathia
(ə-pûr′tŏg-nā′thē-ə, -tō-năth′ē-ə)- A type of malocclusion characterized by the premature occlusion of posterior teeth and the absence of anterior occlusion.open bite
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The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.