The miswak is a teeth-cleaning twig made from the Salvadora persica tree. The miswak's properties have been described as follows: "Apart from their antibacterial activity which may help control the formation and activity of dental plaque, they can be used effectively as a natural toothbrush for teeth cleaning. Such sticks are effective, inexpensive, common, available, and contain many medical properties".

The miswak or siwak is predominantly