Authors of section


Scott Bartlett, Michael Ehrenfeld, Gerson Mast, Adrian Sugar

Executive Editor

Ed Ellis III

General Editor

Daniel Buchbinder

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Vertical mandibular hypoplasia

Definition: Shortness of the ascending ramus, the mandibular bodies, and/or the chin.

Depending on the affected part of the mandible, findings may include:

  • An anterior open bite
  • Excessive occlusal and mandibular plane angles
  • Long anterior facial height
  • Flat face or a retruded chin
Vertical mandibular hypoplasia
Vertical mandibular hypoplasia