An investigation of the occurrence of diastemata and supernumerary teeth.
D000293:Adolescent; D000328:Adult; D003970:Diastema / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000209:etiology; D006801:Humans; D008875:Middle Aged; D011859:Radiography; D014096:Tooth, Supernumerary / Q000150:complications / Q000000981:diagnostic imaging / Q000453:epidemiology*