Teeth could be strengthened through new discovery.
Researchers from the University of Illinois have discovered an amino acid that helps make teeth stronger. 
Cosmetic Dentistry Guide reported proline could play an integral part in strengthening tooth enamel and as such, could be a great help in aiding people avoiding trips to the emergency dentist.
Professor Tom Diekwisch, head of oral biology at the university, commented that tooth enamel is made up of tiny bubbles of proteins and the greater presence of proline helps draw these bubbles closer together, strengthening the tooth.
Applications for the discovery include enabling dentists to repair broken teeth by replacing lost enamel.
Meanwhile, another team of scientists from the University of Illinois recently revealed there is no truth in the old wives’ tale that having dried fruit with breakfast cereal could harm tooth enamel.
Professor Christine Wu commented : “Studies have shown that raisins are rapidly cleared from the surface of the teeth just like apples, bananas and chocolate.”