Tongue scraping is a safe and effective way to keep the tongue clean if done correctly. It’s important not to press too hard on the tongue and to use gentle stroking motions. “Using a tongue scraper is more effective at reducing food debris than a toothbrush,” Dr. Salim says. “However, if you use a traditional scraper for a long time, a reduced taste sensation may ensue along with a slight balding of the tongue papillae.”