The outer layer of your teeth consists of enamel, a substance that protects against physical and chemical damage. Tooth enamel is very tough. In fact, it’s the hardest tissue in the human body — even tougher than bone.
Enamel is the first defense for your teeth against the many different chemicals they’re exposed to from food and bodily fluids. As a result, it can be prone to wear and tear. This is referred to as enamel erosion.
Enamel erosion can cause symptoms like tooth stains and sensitivity. Tooth enamel can’t be regrown. But you can prevent erosion from getting worse with dental treatment and by taking care of your teeth.
Read the full article by Healthline HERE...