Enamel is very though. However, it doesn’t have any living cells and is unable to repair itself if it undergoes physical or chemical damage. This means that enamel erosion isn’t reversible, and the enamel won’t grow back.Enamel is very tough. However, it doesn’t have any living cells and is unable to repair itself if it undergoes physical or chemical damage. This means that enamel erosion isn’t reversible, and the enamel won’t grow back.Once you know the possible food or drink source, try to avoid it. Your dentist may suggest applying a fluoride varnish or a remineralising treatment to strengthen the remaining enamel.