Source : Al Arabiya / 17 June 2013

Redesign the toothbrush: A former student of New York’s School of Visual Arts, Leen Sadder, looked to the roots of oral hygiene to complete the task set by her professor.

During her research she came across the benefits of the Miswak stick, a tooth-cleaning twig traditionally used mainly in the Middle East, Pakistan and India. With each use, the top is bitten off to reveal soft bristles similar to that of a toothbrush.

By Agencies / 4 Jan 2013

The miswak (miswaak, siwak) is a natural toothbrush made from the twigs of the Salvadora persica tree, also known as the arak tree or the peelu tree. Other tree types that are used are the olive, walnut, and other trees with bitter roots.

Salvador Persica is an upright evergreen small tree or shrub, seldom more than one foot in diameter reaching maximum height of three meters. The leaves are small, oval, thick and succulent with a strong smell cress or mustard.