iC Plaque Disclosing Swabs (72 swabs) show when plaque is present on the teeth. The applicators are quick and easy to use. By simply rolling the swab gently across the teeth at the gum edge the plaque stains pink to indicate germ-filled layers on the teeth. This is a visible sign of periodontal disease and it’s simple and easy to show your clients. The disclosing swab is also useful during a prophylaxis to ensure all the plaque has been removed during the procedure.