Why do I need a crown?
There are many indications for crowns, or caps as they are sometimes called. They cover the entire tooth. If a tooth is broken down or heavily filled, the crown is placed to protect the tooth from high biting forces we exert on our teeth when biting and chewing.
Increasing numbers of patients benefit from crowns and onlays: Patients are retaining their teeth longer and with time and associated increased wear and tear, these teeth suffer more cracks and crazing.
Cracks, or leaking fillings, cause pain, sensitivity and discomfort on biting and eating. Worst case, these can cause teeth to crack or split catastrophically. Crowns and onlays brace and stiffen the teeth, at the same time sealing off cracks and crazes, thus reducing their propagation further, and alleviating symptoms.
What are crowns made of?
Crowns can be made from a number of materials. The traditional materials gold and porcelain bonded to gold are tried and tested.
They can also be made from the advanced porcelain equivalents that produce beautiful life-like results. There are metal free solutions available too that allow light to transmit through crown an underlying tooth, which create natural looking smiles.
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Crown or Onlay
What's the difference?
While crowns are an excellent solution for covering up badly damaged teeth, an onlay is a far more conservative choice that may be suggested if you have damage to a back tooth or a filling within it, that requires protection from further breakage. An onlay sits on the tooth and builds up its shape; it is bonded on to the tooth.
Liken a crown to a ‘russian hat’-it wraps around the head and ears, whilst an onlay is similar to a ‘baseball cap’- sitting tightly and snuggly on the top of the head!
The decision to provide a crown or onlay to a back tooth will be discussed with you based on the diagnosis and our clinical and radiographic findings.