Oral health education is an important part of oral health promotion and an essential and basic part of oral health services. This double blind interventional study evaluated the effect of oral health education on oral hygiene knowledge, practices, plaque control and gingival health among 13-15 years old school children in Bangalore city. Oral hygiene knowledge and practices were assessed by a questionnaire and clinical examinations (Turesky-Gilmore-Glickman modification of Quigley Hein plaque index; Loe and Silness gingival index) were performed at baseline, 3, 6 and 9 months. Oral health...