The world's first ever eco-friendly toothbrush has been launched.

It was unveiled in front of dentists at the Greater New York Dental Meeting and Convention earlier this month.

The Aqua Free Toothbrush made its debut in front of 57,000 healthcare professionals.

It contains a special liquid that flows from a built-in tank in the handle to the bristles to clean the teeth. Unlike toothpaste, the special liquid does not need to be rinsed and this conserves water.

The revolutionary toothbrush could potentially improve the hygiene of the two billion people in the world who don't have access to sanitary water.

In the US, it can reduce water usage. According to the US Environmental Protection Agency's estimation, in 2006, an average citizen wasted two gallons of water daily as part of brushing one's teeth and oral hygiene.

In the upcoming months, over 100,000 free brushes will be handed out to local schoolchildren in New York city and Long Island to conserve over two million gallons of water from local residents a day.

For more information, visit www.aquafreetoothbrush.com.