title: Hygiene critical in Third World.
authors.forename: C
authors.initials: C
authors.lastname: Nielsen
authors.forename: D
authors.initials: D
authors.lastname: Hardy
mesh_terms: D003756:Dental Hygienists; D003906:Developing Countries; D005869:Ghana; D006267:Health Education, Dental; D007988:Liberia; D009910:Oral Hygiene; D014838:Volunteers