The effect on professionally administered bi-annual prophylaxes on the oral hygiene, gingival health, and caries scores of school children. Two year study.
D002648:Child; D002986:Clinical Trials as Topic; D004245:DMF Index; D003756:Dental Hygienists / Q000706:statistics & numerical data; D003777:Dental Prophylaxis; D006801:Humans; D009910:Oral Hygiene; D010512:Periodontal Index