The Kong Dental Stick is designed to help remove plaque & food debris from a dog's mouth as he chews on it. Specially designed grooves close over teeth & gently clean & condition both teeth & gums even those at the back of the mouth. Flavoured toothpaste or Kong Stuff 'n’ Breath paste can be applied between the ridges to provide an extra incentive for good oral hygiene during play (toothpaste not included).