A dental Bridge is used to replace a missing tooth. Much like a bridge, it spans the gap.
A bridge will replace missing tooth in-between two other teeth.
Decay removed, teeth shaped into columns that the bridge can slide onto. (Similar to preparing teeth for a crown/cap)
Bridge cemented onto teeth, serving to replace the missing tooth with the "pontic" as well as serving as a protective 'helmet' for the neighboring teeth.
Final bridge cemented into place, permanently. It's important to maintain hygiene and clean under and around bridge for a long lasting result.