It may not seem like a serious problem but persistent grinding and putting pressure on your pearly whites can lead to shortening and ruining of the teeth as well as joint problems later on.

Dentists claimed that massive debt and deficit problems in Ireland have left the country with an increasing number of cases of teeth-grinding.

Other clues to dinosaur diet besides teeth and jaws are fossilised dung and stomach contents, teeth marks and the presence of 'mill stones' in the stomach for grinding vegetation.