Teeth whitening is one of the easiest and most popular ways to brighten your smile. With countless whitening kits, strips, and toothpastes available, it can be tempting to skip the dentist and try an at-home treatment right away. However, not all whitening products are safe or effective for every smile. Before you start any whitening routine, it’s important to consult your dentist. Here are 4 key reasons why a professional opinion matters.