THETA: Teenage Health Education Teaching Assistants.
D002140:California; D003773:Dental Plaque / Q000517:prevention & control; D006267:Health Education, Dental; D006801:Humans; D007318:Inservice Training; D009910:Oral Hygiene; D011313:Preventive Dentistry; D013334:Students / Q000706:statistics & numerical data; D014099:Toothbrushing