A crown (or cap) 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. They are typically bonded to the tooth using a dental cement.
Although there are several types of crowns, porcelain (tooth colored crown) are the most popular, because they resemble your natural teeth.
A dental bridge is a fixed (non-removable) appliance and is an excellent way to replace missing teeth.
The most popular type of bridge is usually porcelain fused to metal type. Porcelain fixed bridges are most popular because they resemble your natural teeth.