Fusion involving both maxillary central incisors.
D000293:Adolescent; D005671:Fused Teeth / Q000000981:diagnostic imaging*; D006801:Humans; D007180:Incisor / Q000002:abnormalities* / Q000000981:diagnostic imaging; D008297:Male; D011859:Radiography; D014071:Tooth Abnormalities / Q000000981:diagnostic imaging*; D014096:Tooth, Supernumerary / Q000000981:diagnostic imaging*