From the manufacturer's website:
STIM-U-DENT® Original Plaque Removers are soft, safe, flexible wooden cleaners shaped to clean spaces between teeth and stimulate gums. Dentists recommend daily use (especially after eating) for maximum benefit.
STIM-U-DENT® can be used as an alternative or 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.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.