designed to remove plaque and food debris from difficult-to-reach spots - interdental gaps and the surface of the teeth - as well as for a healing gum massage. They are also used to clean dentures and braces completely.The use of interdental brushes helps caries prevention and eliminates pigmentation caused by cigarettes, coffee, and other substances.The handle's flexible neck allows for easy cleaning of distant tooth gaps. The set includes a protective cover that acts as an extension of the handle for added convenience.