Stim-U-Dent Mint Plaque Removers, 4 Pack of 25 (Value Pack of 4). Stim-U-Dent plaque removers are soft wooden picks shaped to clean between teeth and gently stimulate gums. Stim-U-Dent is made of basswood from managed forests and is clinically proven to fight gingivitis by removing plaque from between teeth. Clinical studies support a 52% improvement in gingival health. It carries the American Dental Association Seal of Acceptance.