Whether you know much about the anatomy of a tooth or not, you’ve likely heard your dentist refer to the outer layer of the structure as enamel. This strong substance is a barrier between your teeth and harmful particles that attempt to penetrate and cause cavities. Unfortunately, it is not indestructible, which makes it even more important that you take proper care of your teeth early on. Read on to learn why enamel wear matters, what can cause it, and what you can do to prevent it.