The versatile no. 1 x-ray film.
D002648:Child; D006801:Humans; D009066:Mouth, Edentulous / Q000000981:diagnostic imaging; D010510:Periodontal Diseases / Q000000981:diagnostic imaging; D011861:Radiography, Dental / Q000295:instrumentation*; D014094:Tooth, Deciduous / Q000000981:diagnostic imaging