Caredent Disclosing Tablets Disclosing tablets are a dental tool used to help people, visualize plaque on their teeth. Plaque is a sticky, colorless film of bacteria that forms on teeth and can lead to cavities and gum disease if not properly removed. Disclosing tablets are chewable tablets that contain a special dye, which temporarily stains the plaque on teeth, making it easier to see and, therefore, easier to clean.