Crowns fit completely over a whole tooth, covering up any defects caused by chips, discolouration or large fillings. Before we can fit a crown, part of the tooth has to be removed to make enough room for the crown to fit. Crowns can be made from a range of materials, from durable metals such as gold to natural-looking porcelain.
Crowns are used for several reasons:
- as a protective cover for badly decayed teeth, worn down or fractured teeth
- as a permanent restoration for teeth with large fillings
- to restructure a tooth following from root canal treatment
- to correct minor problems in natural teeth like spacing and irregular shape or severe discolouration.
What are crowns made from?
Crowns can be made from a variety of materials. At Brecknock Dental, we offer a range of different materials to give you as much choice as possible.
We provide:
- Porcelain/ceramic
- Zirconia
- Porcelain bonded to metal
- Resin
- Metal alloy
- Gold
Each type of crown has its own advantages and disadvantages. The best way to find out which material is best for you is to talk with your dentist before having the treatment.
How are crowns made?
Firstly, a thorough clinical examination is conducted with radiographs, by the dentist. The suitability for crowns is assessed and any preparatory work is carried out. Your dentist will also be able to advise on material choices, treatment sequence and any other concerns you may have.
At the second appointment, the teeth to be crowned are prepared. This involves reduction of the tooth size (usually under local anaesthesia) followed by an impression or mould of the prepared tooth. This trimming of the tooth is required to create space for the crown to be fitted. The mould taken is then sent to a laboratory, where skilled technicians will fabricate the crown. In the meantime, a temporary crown is made and fitted onto the trimmed tooth.
At the third appointment, the temporary crown is removed and the tooth surfaces cleaned. The completed crown is tried on the tooth for fit, harmony with the bite, and appearance. Finally, the crown is cemented onto the prepared tooth with dental cement.
How long do crowns last and how do I care for them?
Crowns are made of inert materials that do not deteriorate over time. However, the underlying tooth is still prone to decay and gum disease.
Ceramic on the surface may chip or fracture so it’s important to avoid biting or chewing hard substances. Daily brushing and flossing are essential for maintaining good oral health as well as keeping the crown trouble-free. The most vulnerable portion of the crown is the margin or the junction between tooth and crown.
Regular check-ups will enable your dentist to detect any problems with your crown and recommend necessary treatment.
