title: The effect of systematic chairside oral hygiene instruction on gingivitis and oral cleanliness in children.
mesh_terms: D000293:Adolescent; D002648:Child; D003753:Dental Health Surveys; D003773:Dental Plaque / Q000517:prevention & control; D003777:Dental Prophylaxis; D004739:England; D005500:Follow-Up Studies; D005891:Gingivitis / Q000517:prevention & control*; D006267:Health Education, Dental; D006801:Humans; D008722:Methods; D009910:Oral Hygiene; D010512:Periodontal Index; D010781:Photography; D013997:Time Factors; D014099:Toothbrushing