title: [An epidemiological study of caries free subjects in jurior high schools].
mesh_terms: D000293:Adolescent; D003731:Dental Caries / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D009747:Nutritional Physiological Phenomena; D009910:Oral Hygiene; D010290:Parents