Enamel – It’s a tooth’s first line of defense against cavities, decay and plaque. The hardest part of the human body, enamel is the bullet-proof vest that teeth wear to defend against erosion. Acids in the food we consume, and naturally produced by the bacteria that live in our mouth, are the number one enemy of healthy teeth. That thin white outer coating of enamel, though almost as hard as diamonds, is precious and must be protected. So how can you ensure that your child’s enamel will remain strong throughout their baby-teeth years, and help develop healthy habits your child will take into adulthood?