Splinted dental crowns are two or more dental crowns fabricated together as one and placed over two or more individual teeth making them one. Some dentists refer to these teeth as bridged rather than splinted. There a couple of reasons you might need splinted crowns. One reason is a mobile tooth/teeth. Splinting the teeth together as one makes them more stable. The other, is a drifting tooth which leads to a food trap. This happens when a patient has a tooth removed and doesn't replace it with a dental implant or bridge. The teeth drift and move resulting in a food trap. Splinted dental crowns solve this problem by maintaining the position of the teeth tightly together, therefore preventing food trapping.