they distinguish 3 abnormalities which are responsible , alone or in combination , for an increased height in the face : hypsomaxilla , hypsogenia and vertical anterior inter-incisive aperture ( open bite ) , which can arise in three situations ( supra erupted posterior alveolar maxillary segment , infra erupted anterior alveolar mandibular segment , exaggerated opening of the angle of the mandible or amblygonia ) .
C0015450
face
C0024687
mandibular