A dental crown is a cap or an artificial tooth that is used to restore a damaged or broken tooth. Dental crown treatment becomes essential for the overall dental health, they strengthen ad protect the affected tooth from further damage or infections and also improve the appearance of disfigured teeth. A tooth can be divided into two parts the root and the crown. The roots of the tooth are contained within the gums and bones. The visible part of the tooth is called the clinical crown. Any cap or covering over this area is called a dental crown. Dental crowns are specially cast after taking the impression of the tooth to be covered or replaced. The original tooth may have to be adjusted before affixing the crown. In the case of small cavities or fractures, the tooth may require filing, while, severely damaged tooth or large cavities may require filling to provide a stable surface for affixing the artificial crown. The bite of the opposite tooth is also incorporated before casting the final structure. Dental crowns are fixed or permanent. Dental crowns may be made of ceramic, porcelain, gold alloys or base metal alloys. Ceramic crowns are most popular as they blend with the natural tooth color. Porcelain fused to metal provides a stronger base and are extremely durable. Gold alloys were very popular until a few years back, as they are strong and do not wear the original tooth. A cheaper alternative was base –metal alloys that are durable and resistant to corrosion. However, in the recent years, they have lost favor as they lack cosmetic appeal. The procedure may take two to three sessions of an hour each. It may take some time to adjust to the new prosthetic tooth.
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