Third and fourth molar fusion.
D000328:Adult; D005260:Female; D005671:Fused Teeth / Q000000981:diagnostic imaging*; D006801:Humans; D008963:Molar / Q000002:abnormalities* / Q000000981:diagnostic imaging; D011859:Radiography; D014071:Tooth Abnormalities / Q000000981:diagnostic imaging*; D014095:Tooth, Impacted / Q000000981:diagnostic imaging*