Research in the UK could change the way people care for their teeth. A new toothpaste is in the works that re-mineralizes your teeth and fills in the little holes created by acid erosion, decay, gum ression, etc. Filling in the tiny little holes and remineralizing the tooth will help prevent decay and could make for a much healthier smile. This would also solve a problem for many people who have tooth sensitivity due to acid erosion or gum recession. The tubules exposed would be filled and so the nerve would no longer be stimulated each time the person took a drink or ate food.