Crown & Bridges POPULAR INFORMATION A Dental crown covers & protects a single tooth in oral cavity and a Dental bridge covers or "bridges" the gap between missing teeth Types of Crowns: Stainless steel crowns Metal Crowns Porcelain fused to metal All-ceramic or all-porcelain Stainless steel crowns are prefabricated crowns that are used on permanent teeth primarily as a temporary measure. For children, a stainless steel crown is commonly used to fit over a primary tooth that's been prepared to fit it. Metal Crowns Made of base-metal alloys. The metallic color is the main drawback. Metal crowns are a good choice for out-of-sight molars. Porcelain-fused-to-metal dental crowns can be color matched to your adjacent teeth. It consists of ceramic porcelain which looks like mostly natural teeth and beneath there is a metal coping. All-ceramic or all-porcelain dental crowns provide better natural colour match than any other crown type. They are a good choice for front teeth.