A crown is a restoration that covers or caps a tooth to restore its normal shape and size and is most commonly used on broken teeth. Following treatment a crown gives extra strength to a tooth and protects a badly decayed tooth from fracture. When a crown is necessary, we now have the ability to fabricate an all-porcelain crown for both the front or back of the mouth. There is no metal in this crown, which therefore gives the tooth the most natural appearance. Crowns can be used on almost any teeth and if properly maintained will last for many years.