Modern devices used for cleaning tartar are not strong enough to scratch the enamel of the tooth. In order to cut the enamel of the tooth, a device that can only cut diamonds is needed because the enamel is of diamond quality. Tartar is quite soft compared to the enamel of the tooth. However, it can be cleaned with a cavitron (stone cleaning device). Cavitron never scratches the enamel of the tooth.