A crown, sometimes referred to as a “cap”, is a prosthetic tooth that is used to restore teeth where the structure is too weakened or damaged to have amalgam or dental composite fillings. Dental technology has come a long way to improve the look of crowns. Compared to the old style bridges, these works of art are exceptionally well fitting and very natural looking. Using a bridge or crown with metal base covered with porcelain or using all porcelain material eliminates the dark edges at the gum line that have been visible with the old style of bridges and crowns.