Crowns & Bridges
A crown or cap is usually a porcelain or porcelain/metal jacket, which fits over a tooth in the case where a lot of tooth structure has been lost due to decay, cracking or wear. It is also recommended where a tooth has had its nerve removed, as it is prone to breaking. A crown strengthens the already weakened tooth by encasing it. It is colour matched accurately to the colour of existing teeth by the technician.
There have been recent developments in Zirconia-based crowns which have no metal at all. These are extremely strong and exceptionally aesthetic, so there are no more black lines at the gum line on teeth. The tooth to be crowned is prepared under local anaesthetic. Sometimes filling material is added to optimize the shape. An impression of the prepared tooth is then taken and sent to the laboratory. A temporary crown is then put in place while your crown is being made.
You will also be asked to visit the laboratory so the technician can see your teeth and accurately select the shade of the crown. The second visit to us will be to insert the handcrafted porcelain crown. Sometimes a third visit is required if the surrounding gums are not in good condition.
Bridges replace one or more missing teeth. They consist of an artificial tooth anchored to the natural teeth on each side of the gap.
Crowns and bridges are made out of Porcelain and gold alloy. Porcelain is strong and can be made to match the colour of your natural tooth. It is resistant to staining. The gold alloy is used for strength, hardness and durability. Missing teeth should be replaced for the following reasons:
- To improve appearance
- To prevent stresses causing damage to other teeth
- To prevent the teeth near the gap from shifting
- To maintain the natural bite
- To improve chewing ability