Some sonic toothbrushes fitted with compact or children-sized medium nylon bristles vibrating at or above 30,000 vibrations per minute work very well with TartarEnd to remove tartar and plaque above and below the gum line. TartarEnd LLC does not have financial or marketing relationships with toothbrush manufacturers. Our testing, backed by customer experiences, suggests the Philips Sonicare Series 4100 at its high-speed setting is a very good and relatively inexpensive choice for removing tartar and plaque when using TartarEnd toothpaste.