The third dimension in diagnosis - depth.
D005145:Face / Q000033:anatomy & histology; D006801:Humans; D008310:Malocclusion / Q000175:diagnosis*; D008312:Malocclusion, Angle Class II / Q000175:diagnosis* / Q000473:pathology; D008313:Malocclusion, Angle Class III / Q000175:diagnosis* / Q000473:pathology; D014716:Vertical Dimension