title: [Determination of the oral hygiene index in children in the 1st grades of elementary school].
mesh_terms: D002648:Child; D003753:Dental Health Surveys; D006801:Humans; D009911:Oral Hygiene Index; D011044:Poland; D012571:School Dentistry
vernacular_title: Określenie wskaźnika higieny jamy ustnej u dzieci pierwszych klas szkół podstawowych.