The open bite malocclusion is one of the most difficult dentofacial deformities to treat. The complexity of this malocclusion is attributed to a combination of skeletal, functional and habit related factors.Accurate diagnosis is essential for proper treatment planning , which in combination with patient specific mechanics, is needed to achieve stable results. Given that we need a sound knowledge of such deformities, this book gives a brief insight into the Types, Etiology, Morphology, Diagnosis and Management of Open Bite.