The Dentisse® fluoride free toothpaste was created by 2 dental scientists with a long history in oral care and testing. It was originally used as a positive control in testing other toothpastes. Dentisse® uses refined white kaolin clay as its cleaning and polishing agent. It replaces the harsh silica used in most toothpastes. This special clay is much gentler, but it is very effective at removing surface stains. It also has superior polishing properties and very low abrasiveness to the teeth. It is combined with other natural ingredients that leave your teeth feeling like you just came back from the dentist.