Dental bridges have been around for a very long time. This has given dentists plenty of opportunities to expand upon the basic structure that was first developed. Today, we have removable bridges and fixed bridges, and even implant-supported bridges. A bridge may be unique based on where it is placed in the mouth. For example, a Cantilever bridge is a restoration that may be affixed to just one tooth. That would be the last molar, with the pontic replacing the very back tooth. While a cantilever bridge can be used in this situation, your dentist may prefer to replace the most posterior tooth with a dental implant and crown. Another type of bridge is the Maryland bridge. This restoration doesn't rely on crowns to secure the artificial tooth or teeth. Instead, the Maryland bridge is affixed to adjacent teeth using a metal framework. While this bridge is more conservative and doesn't require the support of two otherwise healthy teeth, it may not be as durable as other types of bridges. Finally, the implant-supported dental bridge is affixed only to one or two dental implants, not to any other teeth.