Home > Dental > Crowns and Bridges Get the Flash Player to see this player. Rate: (Click the stars to rate) Published on Jun 05, 2008 by AThorne, Views: 7877 Dr. Adam Thorne discusses newer techniques for crowns and bridges. Crowns are used for broken teeth, or teeth with large fillings and cavities. A bridge is a group of crowns. For people with advanced dental caries, these treatments are necessary.