Crowns
What is a crown and how is it made?
Crowns are an ideal restoration for teeth, which have been broken, or have been weaken by decay or by placing a very large filling. Root treated teeth may require a crown to protect the remaining tooth.

What are crowns made of ?
Crowns are made of a variety of materials and new materials are constantly introduced on the market. Different materials are used for different procedures.

Porcelain bonded to precious metal crown- is made of a precious metal base and porcelain is then applied in layers over the base.



Porcelain crowns
- these crowns are not as strong as the bonded crowns but they can look very natural and are mostly used on front teeth and on people that do not grind their teeth.



Porcelain and composite crowns
- these crowns are made of a resin material and can look very natural. They are not as strong as bonded crowns and are used as a" long term" intermediate solution for full mouth reconstruction cases.

These crowns help the patient to get used to repositioning of the bite.


Good cosmetic results can be achieved with
porcelain crowns strengthened with metal


The metal is hidden inside and behind the tooth.

Veneers are often used to close small gaps, when orthodontics is not suitable. If one tooth is slightly out of position, a veneer can be fitted to bring it into line with the rest of the teeth.

Veneers can protect teeth from further damage caused by acid in foods and drinks or from acids in the stomach that cause the teeth to wear away. The teeth become thin and weak and can be protected by veneers.

Precious metal crowns- Gold and palladium crowns are very strong and hard wearing and are usually used at the back of the mouth. They are nor visible and most suitable for people who grind and clench their teeth.

How is a crown made?
The tooth will be prepared to the ideal shape of the crown. This will involve removing most of the outer surface of the tooth leaving a core. The thickness of the crown will be the same as the amount of tooth that has been removed.

Once the tooth is shaped an impression of the prepared tooth will be taken and one of the opposite jaw and another to mark the way you bite. All the impressions will be sent to the technician to reproduce a crown that fits the tooth. A visit to the laboratory will be needed to match the colour of the crown to the existing teeth. The prepared tooth will have a temporary crown fitted until the new crown is ready .

The treatment takes at least two visits to the surgery and one visit with the laboratory.

How long will a crown last?
The life of a crown depends on how much pressure is applied on the bite and how well it is looked after. The crown can not decay , but decay can start where the edge of crown joins the tooth. It is very important to keep the gums and crown clean.

 

South Coast Dental Specialists, 11 Merley Park Road, Ashington, Wimborne. BH21 3DA
Tel : 01202 889960