A crown is a great way to improve the appearance of a broken or decayed tooth. It is simply a cap that is cemented over the damaged tooth, making it blend in with your adjacent teeth.
• To protect a decayed tooth from breaking
• To cement together parts of a cracked tooth
• To restore the appearance of a worn down tooth
• To support a natural tooth that has a large filling, when there is not much tooth structure left
• To cover discoloured teeth and dental implants
Metal crowns may be made of materials including alloys of gold or other non-precious metal -based alloys. These types of crowns require the least amount of tooth substance to be removed because the metal structure is strong and can be made in thin sections. Metal based crowns are very good at taking biting forces and are very good crowns to be placed in the back molar regions where aesthetics are not as critical.
Porcelain fused to metal crowns consist of an underlying metal base for strength which is covered by porcelain to improve the aesthetics. These can be placed in both the anterior and posterior regions of the mouth.
Metal free all-ceramic crowns are usually made of zirconia or a high strength glass-ceramic material. Their fabrication and cementation can use modern tooth-strengthening techniques and they represent the ultimate in aesthetics as they are the most life-like in appearance when compared to natural teeth.
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