title: Progress in improving dental health--a discussion.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D003729:Dental Care; D006801:Humans; D008019:Life Style; D008136:Longevity; D009664:Norway; D009909:Oral Health; D009910:Oral Hygiene; D010510:Periodontal Diseases / Q000517:prevention & control