title: Periodontal disease in Nigeria. The problem and possible solutions.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005892:Gingivitis, Necrotizing Ulcerative / Q000453:epidemiology; D006801:Humans; D008875:Middle Aged; D009549:Nigeria; D009910:Oral Hygiene; D010510:Periodontal Diseases / Q000453:epidemiology* / Q000517:prevention & control