A dental filling is the general term to describe a material placed in a tooth to maintain its health and function. We place fillings primarily after removing cavities or to repair broken teeth. Most fillings now are placed with with the white composite material, but we also have metal and porcelain options. Crowns completely cover a tooth, restoring a normal shape and appearance. You may need a crown to: cover a misshapen or discoloured tooth, protect a weak tooth, restore a broken or worn tooth, cover a tooth with a large filling, hold a dental bridge in place, cover a dental implant, or cover a tooth that’s had a root canal procedure.Bridges, sometimes called a fixed partial denture, are used to replace missing teeth with artificial teeth. Bridges can be made of gold, alloys, porcelain, or a combination. We anchor them onto surrounding teeth after preparing them for crowns. Then a false tooth joins to the crowns and the bridge is cemented onto the prepared teeth.