When a patient has a tooth missing, they usually want the 'space' filled. One way of doing this is to construct a bridge to fill the space. There are two types of bridge:

Conventional bridge

This involves placing crowns on the teeth on either side of the space, and then getting the laboratory to construct a bridge with 3 'conjoined' crowns. It is in effect, a 'triple-crown', where the 2 crowned teeth, on either side of the space, carry the middle one.

Sticky Bridge

This is where the laboratory constructs a false tooth to fill the gap, and this false tooth is held in place by it being glued to the teeth on either side. This bridge has the benefit of both teeth on either side, not having to be 'cut down' for crowns. It is a very simple, safe, conservative type of bridge.