A new toothpaste to help those with sensitive teeth has been released.
Colgate has launched it new Sensitive Pro-Relief toothpaste to help stop the pain caused for sufferers of sensitive teeth. 
The company noted that more than half (57 per cent) of the world population have sensitive teeth.
As a result, the firm has developed this new product which uses Pro-Argin – a combination of amino acids, soluble calcium, arginine and calcium carbonate – to block pores in the teeth leading to the nerves, thereby reducing sensitivity.
Elsewhere, Jennifer Lee recently wrote in a blog for the New York Times that a new waterless toothbrush has been invented which allows people to brush their teeth using liquid toothpaste.
Brush inventor Todd Cinelli noted the device uses replaceable cartridges that enable the brush to be used approximately 30 times before refilling.
He said it will have numerous applications, including in the armed forces and for improving dental health in developing countries.