A bridge requires the alteration of adjacent teeth to support the bridge.
A bridge consists of a false tooth (or teeth) supported by adjacent teeth that have been capped. It is used to replace one or two missing teeth.
A bridge requires two often healthy teeth to be altered, which is not an ideal way of replacing a missing tooth compared to a dental implant. Bridges tend to have short lives, five to ten years, compared to a dental implant, which can last a lifetime. So while a bridge can sometimes be more economical at first, in the long run a dental implant can cost you less.