Crowns and Bridges

When teeth are heavily decayed they may be too weak to survive with just a filling. By placing a crown, a tooth may be given a new lease of life. Even when a single tooth is lost a denture may not be required as a bridge can be made which spans the gap with a tooth attached to those next to the space. A bridge allows the dentist to replace lost teeth without the use of a denture or dental implant. Basically a false tooth is held in place by being attached to a tooth next door. The disadvantage is that the teeth next to the space have to be prepared in a similar way to a crown in order to accept the bridge. When the top of a tooth is lost due to decay there may be very little for the crown to actually hold onto. To gain ‘retention’ as dentists call it, a post is placed inside the tooth which forms a peg on top of the tooth and acts as a seat for the crown. Usually a post crown is a better option than having the tooth extracted with a subsequent denture or bridge.