Wisdom Clean Between Interdental Brushes Large provide gentle, yet effective interdental cleaning, whilst helping minimize gum trauma. Each flexible soft rubber stick is designed completely wire free for maximum comfort through a method of cleaning that is easier than flossing!. Wisdom Clean Between Interdental Brushes Large clean between your teeth for optimal oral hygiene. Daily use helps remove plaque and bacteria, preventing cavities and gum disease. Designed for gentle dental care The new and improved design of the brushes is complete wire free. Soft, easy-to-use rubber ensures extra gentle cleaning that is as effective as it is comfortable.