A fixed partial denture "bridge" is an option available to replace one or more missing teeth.
A bridge replaces missing teeth with "pontic" artificial teeth, literally bridging the gap where one or more teeth may have been. Your bridge can be made from a variety of materials including gold, porcelain, and zirconia. Bridges are NOT removable, as they are definitively cemented to the teeth on either side of the missing tooth space.
The longterm success of any bridge is dependent on the continued health of the gums, supporting bone and tooth structure to which the bridge is cemented.