Bridges are used to fill in the space of a missing tooth with a natural looking substitute. Bridges can be supported by adjacent teeth, by implants, or by a combination of both. When done correctly, a bridge can make an otherwise ugly gap in your smile look natural and untouched.
Although implants are an extremely viable option for replacing missing teeth, they can be expensive, and are sometimes not practical, especially if the 2 teeth adjacent to a gap need to be crowned anyway. In that situation, bridges are a great way to fix a gap in your smile!