A group of dentists at the King Saud University (KSU) have studied the medicinal properties of the miswak (teeth cleaning sticks) commonly used in Arab and Asian countries, and have concluded that “the beneficial effects of miswak for oral hygiene and dental health of a person using miswak are equal to, if not greater than, those who use toothbrush and paste. The research identified 19 natural substances found in miswak that benefit dental health.