What is a crown?

Slade

 

 

A crown is a cap that is placed over a tooth and held in place by dental adhesive or cement.

Crowns are used for several reasons:

  • as a protective cover for badly decayed teeth or fractured teeth
  • as a permanent restoration for teeth with large fillings
  • 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.  They can be made from ceramic or metal alloys.  A combination of metal and ceramic is also possible to maximise strength and simulate the appearance of natural teeth.

crwons crowns

Taking the correct shade of colours to be used is extremely important in matching the crown with the other teeth, providing the patient with a natural looking tooth.

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How are crowns made?       

Firstly, 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 second appointment, the temporary crown is removed and the tooth surfaces cleaned.  The completed crown is then cemented onto the prepared tooth with dental cement.

crowns

How long do crowns last and how do I care for them?      

crownsCrowns are made of inert materials that do not deteriorate over time. However, the underlying tooth is still prone to decay and gum disease.

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. Ceramic on the surface may chip or fracture. Avoid chewing excessively-hard substances like ice cubes, metal pins or bones.

 

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