If you try to file or shave your teeth at home, you risk damaging the enamel, which can lead to a slew of additional issues. Because tooth enamel cannot be regrowed, any damage is irrevocable. However, there are some things that can be done by patients themselves to maintain healthy-looking teeth for as long as possible before they need to be replaced. The first thing you should know about sharpening your own teeth is that it is not recommended for most people. While it may seem like a simple process, there are many factors beyond your control that can result in duller-looking teeth than you might expect. For example, if you drink coffee or tea and use tobacco products such as cigarettes or chewing gum, your teeth will likely appear blackened because of the pigment found in these substances. Also, if you have certain medical conditions such as diabetes or hypothyroidism, your dentist may advise you against sharpening your teeth because you are at increased risk for developing serious infections. Finally, if you have poor oral hygiene or suffer from periodontal (gum) disease, your dentist may recommend avoiding sharp objects because doing so could worsen the situation. Despite the risks, a lot of people continue to sharpen their own teeth. If you are one of them, here's what you should know: Sharpening your teeth at home is easier said than done.