While dental crowns and bridges are both made from metal, porcelain, or a combination of materials, there is still a fundamental difference. A dental crown is a cap placed on the existing decayed, broken, or discoloured tooth. It is a replacement for missing teeth to restore the health and appearance of the original tooth. In contrast, a dental bridge involves placing two crowns on adjacent teeth connected in the middle by a third crown, therefore 'bridging' the space. Your dentist will advise if this is a treatment you require for preventative, functional or aesthetic purposes.