Gaps after a tooth extractions or a congenitally missing tooth, can be replaced with a bridge, if any other treatment options are not seen as more functional, suitable and superior. For instance, treatment with dentures, fibre reinforced restorations, dental implants.
There are different types of bridges
Conventional bridges, Maryland bridges, resin etched bridges, inlay/onlay bridges, hybrid implant-tooth bridges, cantilever bridges, they are all indicated for different areas and/or clinical situations in the mouth.
Please speak to your dentist for more information.