Variations in measurements of human periapical structures in radiographs.
D000886:Anthropometry; D001641:Bicuspid; D006801:Humans; D008334:Mandible; D008437:Maxilla; D008954:Models, Biological; D008963:Molar; D010486:Periapical Tissue / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D011859:Radiography; D012390:Root Canal Therapy; D013997:Time Factors