QUESTION: What is a crown? Answer: A crown is an artificial restoration that fits over the remaining part of a prepared tooth, making it strong and giving it the shape of a natural tooth. A crown is sometimes known as a ‘cap’.
QUESTION: How is a crown prepared? Answer: The dentist will prepare the tooth to the ideal shape for the crown. This will involve removing most of the outer surface, and leaving a strong inner core. The amount of the tooth removed will be the same as the thickness of the crown. Once the tooth is shaped, the dentist will take an impression (mould) of the prepared tooth, one of the opposite jaw and possibly another to mark the way you bite together. The impressions will then be given to the dental technician, along with an appropriate shade and other information needed for the crown to be made.
QUESTION: Why would I need a crown? Answer: Crowns are an ideal restoration for teeth that have been broken, or have been weakened by decay or a very large filling. A crown could be used for a number of other reasons, for instance:
- you may have discolored fillings and would like to improve the appearance of the tooth - you may have had a root filling which will need a crown to protect what is left of the tooth. - it may help hold a bridge or denture firmly in place.
QUESTION: What is a crown made of? Answer: Crowns can be made of a variety of different materials and new materials are continually being introduced. Some of the most popular options are listed below.
Porcelain bonded to Non-Precious/Precious metal: this is what most crowns are made from. A precious metal base is made and then porcelain is applied in layers over it.
All-ceramic crowns: this modern technique offers a metal-free alternative, which can give the strength of a bonded crown and the appearance of a porcelain crown. Therefore it is suitable for use in all areas of the mouth.
Gold alloy crowns: gold is one of the oldest filling materials. Today it is used with other metal alloys to increase its strength, which makes it a very hardwearing restoration. These crowns are silver or gold in colour.
QUESTION: What will happen between visits? Answer: A temporary crown will be made so that you can use the tooth while you wait for the crown to be made. This crown may be more noticeable but is only a temporary measure.
QUESTION: How is the crown fitted? Answer: When you and your dentist is happy with the fit and appearance of the new crown it will be fixed in place with special dental cement or adhesive. The cement forms a seal to hold the crown in place.
QUESTION: Does it hurt to have a tooth prepared for a crown? Answer: No. A local anesthetic is used and the preparation should feel no different from a filling. If the tooth does not have a nerve, and a post crown is being prepared, then a local anesthetic may not be needed.
QUESTION: What will it cost? Answer: Costs will vary according to the type of crown and material used. It is advisable to get a written estimate and treatment plan before beginning any dental treatment from your Dentist.
