Dens invaginatus.
D000293:Adolescent; D003481:Cuspid / Q000002:abnormalities* / Q000000981:diagnostic imaging; D003719:Dens in Dente / Q000145:classification / Q000000981:diagnostic imaging / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D011859:Radiography; D014071:Tooth Abnormalities