title: [Imaging technology in periodontal disease (3d report). Effect of microdensitometer scanning aperture size and X-ray projection angle on the Wiener spectrum].
mesh_terms: D015502:Absorptiometry, Photon / Q000295:instrumentation; D006801:Humans; D008334:Mandible / Q000000981:diagnostic imaging; D008722:Methods; D010510:Periodontal Diseases / Q000000981:diagnostic imaging*; D013679:Technology, Radiologic