A tooth that has been weakened or damaged is vulnerable. Placing a dental crown on such a tooth is a general dentistry treatment which may save it. Large fillings, root canal therapy, cracks or breakage are some of the more common instances where it is advisable to crown a tooth. Occasionally, people will request a crown for cosmetic reasons. For example, if a tooth is misshapen or badly discolored, a crown can give the tooth a more aesthetically pleasing appearance.
Dental crowns are made from a variety of substances. Some, used mostly on the primary teeth of children, are made from stainless steel. Adult crowns are usually created from metal alloys, or porcelain fused to gold or another alloy. They are also manufactured from ceramic or acrylic resins.