The Kaoline clay is a common ingredient in the polish that dentists use. The sage helps to whiten teeth. This tooth powder will help keep your teeth clean and gums healthy. Mix the sea salt, white Kaoline cosmetic clay, and baking soda together in a bowl. Grind the sage into a fine powder using a mortar and pestle and mix with the other ingredients. Add the essential oil and mix well again. Put in a small container and use a pinch or two on a wet toothbrush. No, it doesn’t taste great but it is safer than commercial tooth paste.