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prognathic

   Also found in: Dictionary/thesaurus, Medical 0.01 sec.
prognathous, prognathic
having a projecting lower jaw

prognathic [präg′nath·ik]
(anthropology)
A condition of the upper jaw in which it projects anteriorly with respect to the profile of the facial skeleton, when the skull is oriented on the Frankfort horizontal plane; having a gnathic index of 103.0 or more.


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On the one hand, Anoiapithecus displays a very modern facial morphology, with a muzzle prognathism so reduced that, within the family Hominidae, we can only find comparable values within the genus Homo sapiens, whereas the remaining great apes are notoriously more prognathic.
The surgical term for this is a class three mal-occlusion, or a prognathic mandible.
Prognathic (Angle class 3) patients might have a disproportionately large mandible.
 
 
 
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