A crown covers the entire tooth with a “Cap” made of porcelain, zirconia, and metal (a gold or other soft metal alloy). It covers a broken, damaged or discoloured tooth.
Crowns are used to replace large fillings that overwhelm the underlying tooth that may have suffered a fracture, or a misshapen tooth. They serve to protect weak teeth or cover dental implants. They may also be used to attach a bridge or cover the effects of root canal work.
WHAT TO EXPECT
Crowns are affixed using a local anaesthetic. The first step is to make a mould of the existing tooth to model the crown on. You will have a choice of material. The dentist may have one s/he prefers working with. The tooth is then prepared
by filing and finally the crown is cemented into place.
Crowns are an effective method of repairing teeth where a portion of the tooth is missing.
They will wear like any substance and the colour may stain or appear a slightly different shade to the surrounding teeth. They will usually not respond to bleaching.