Tongue brushing versus tongue scraping.
D000328:Adult; D003742:Dental Devices, Home Care; D003773:Dental Plaque / Q000517:prevention & control*; D005891:Gingivitis / Q000517:prevention & control*; D006801:Humans; D009910:Oral Hygiene; D010349:Patient Compliance; D014059:Tongue; D014099:Toothbrushing / Q000295:instrumentation