title: A simplified periodontal examination procedure using the CPITN probe. FDI/WHO Working Groups.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D004867:Equipment Design; D006801:Humans; D010510:Periodontal Diseases / Q000175:diagnosis*; D010517:Periodontics / Q000295:instrumentation*; D014944:World Health Organization