Crowns
A crown (sometimes called a 'cap') is a tooth-like covering placed over a carefully prepared tooth. They are used to strengthen teeth that have become weakened from large fillings, fractures, or excessive wear. They can also be used to change the shape, colour, or position of a tooth.
Crowns are made from very strong materials such as gold and porcelain. These materials are not only used for their strength, but also because they resist leakage and corrosion. This helps them to normally last much longer than large amalgam or composite fillings.
Crowns usually take two appointments to make. The first appointment involves carefully preparing the tooth to make room to fit the crown. An impression is then taken of the prepared tooth, and is sent to a technician to have the crown made. A temporary plastic crown is fitted to seal the tooth while the proper crown is being made.
The technician constructs the crown to exactly fit your tooth, and also to match the colour of the surrounding teeth. At the second appointment, the temporary crown is removed and the proper crown checked for fit and colour. It is then bonded into place.
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