A dental crown is a restoration designed to fully encapsulate a tooth and is able to restore strength, shape and appearance of teeth.
Why have a crown?
To protect a cracked tooth.
To protect a tooth that has had Root Canal Treatment.
To restore a broken or weakened tooth.
To improve the shape or colour of a tooth.
What is a crown made of?
Gold crowns are used when strength is paramount, with the solid yellow gold crown there is no chance of chipping and the gold is very strong even when thin.
Porcelain over metal crowns are used when aesthetics are important and strength is a factor, these crowns are made by covering a thin layer of metal with tooth coloured porcelain.
All porcelain crowns are used when aesthetics are the most important factor and out and out strength is less important, such as in the front your mouth, though new materials are available that are strong enough to allow us to use all porcelain crowns in higher load areas now.