Graphing indexes reduces plaque.
D000328:Adult; D004396:Coloring Agents; D003773:Dental Plaque / Q000175:diagnosis / Q000517:prevention & control*; D003812:Dentist-Patient Relations; D006267:Health Education, Dental; D006801:Humans; D008297:Male; D009042:Motivation; D009910:Oral Hygiene; D010512:Periodontal Index
D004396:Coloring Agents