title: The buccal object rule.
mesh_terms: D006801:Humans; D008334:Mandible / Q000000981:diagnostic imaging; D008437:Maxilla / Q000000981:diagnostic imaging; D011861:Radiography, Dental / Q000379:methods*; D014070:Tooth / Q000000981:diagnostic imaging; D014092:Tooth Root / Q000000981:diagnostic imaging