Stim-U-Dent plaque removers are soft, safe, flexible wooden cleaners shaped to clean between teeth and stimulate gums. Dentists recommend daily use (after eating) for maximum benefit. They can be used as an alternative or as a supplement to daily flossing. The ADA Council on Scientific Affairs' Acceptance of Stim-U-Dent Plaque Removers is based on its finding that the product is effective for removing plaque between teeth and helping to prevent and reduce gingivitis, when used as directed. Biodegradable wood from managed forests.