A crown is a covering that encases the entire tooth surface restoring it to its original shape and size. A crown protects and strengthens tooth structure that cannot be restored with fillings or other types of restorations.
Although there are several types of crowns, porcelain are the most popular, because they resemble your natural teeth. They are highly durable and will last many years, but like most dental restorations, they may eventually need to be replaced. Porcelain crowns are made to match the shape, size, and color or your teeth giving you a natural, long-lasting beautiful smile.
If you should choose a porcelain crown, in most cases it will be delivered to you in the same day. This technology is known as CEREC/CAD CAM.
Crowns made from other materials, such as gold, will require two separate visits.