A bridge, also known as a fixed removable denture, is made to replace one or more missing teeth. Bridges can be supported in any of three ways:
A traditional bridge is made by creating a crown for the teeth on either side of the space and placing a false tooth or teeth between the crowns. The crowns, sometimes called caps, can be supported by natural teeth or by implants. The false tooth or teeth are attached to the crowns and fill the empty space.
If the teeth receiving the crowns are healthy and strong, they probably will not need root canal.
On average, bridges last five to seven years. A major reason bridges fail is that new cavities develop on the supporting teeth. These cavities occur because of poor oral hygiene. With proper hygiene, which includes flossing your teeth under the bridge, they will last longer.