Tooth malposition Diastema UMLS:C0011998 Dental diastema Usually there is contact between the lateral aspects of the permanent teeth, at their broadest point. Diastema can apply to any pair of teeth and the term should be modified by a descriptor of the involved teeth. This descriptor must be distinguished from Widely spaced teeth. HP:0000699 Gaps between teeth Increased space between two adjacent teeth in the same dental arch. Dental diastasis Gap between teeth SNOMEDCT_US:35591002 Diastema of the teeth Diastasis of the teeth