1. The effect of toothbrushing frequency, toothbrushing hand, sex and social class on the incidence of plaque, gingivitis and pocketing in adolescents: a longitudinal cohort study;Addy;Community Dent Health,1990
2. The formation and control of dental plaque-an overview;Addy;J Appl Bacteriol,1992
3. A clinical trial to evaluate plaque removal with a double-headed toothbrush;Agerholm;Br Dent J,1991
4. Problems and proposals for recording gingivitis and plaque;Ainamo;Int Dent J,1975