A bridge is composed of one or more teeth supported by two teeth covered with crowns on either side. In an implant-supported bridge, the bridge is supported on either side by an implant.
An implant-supported bridge is used when more than one tooth is missing. It may also be used when there is concern that you might put too much pressure on individual implants that are not connected to each other. An implant-supported bridge relieves the pressure on the individual implants and spreads it across the entire bridge.
Implant-supported bridges are an alternative to full dental implants and an option instead of dentures. Unlike dentures, bridges are permanently fixed in place and are usually made of porcelain, and not acrylic. Bridges act very much like natural teeth.