Bridges can provide a reliable solution to a missing tooth or teeth and are fixed in place. The false tooth is supported on a tooth or teeth either side of it. The more traditional type of bridge, involves a crown being placed on the teeth used to support the bridge with the false tooth attached to this crown. This is, obviously, destructive of tooth tissue, unless a crown is already present.
In certain situations, we can now use a minimal wing to support the false tooth, which is bonded to the tooth next to the space. This is a more minimal approach, involving less (and sometimes no) drilling of tooth. These bridges do, occasionally, come out, but they can be bonded back in.