Tooth malposition Open bite 2010-07-02T09:30:43Z Absence of overlap of upper and lower teeth UMLS:C0266061 SNOMEDCT_US:35580009 Visible space between the dental arches in occlusion. Open bite between upper and lower teeth Open bite HP:0010807 An open bite produces an absence of vertical overlap of the two dental arches. It may be associated with malocclusion, but this should be coded separately. Open bite can be accompanied by malocclusion, which is a complex bundled term. The Angle classification of malocclusion (Classes I-III) is widely used in the orthodontics community [Moyers, [1973]] for the characterization of malocclusion.