Porcelain Inlays and Onlays
Porcelain inlays and onlays are used when a filling is too deep and it’s durability is likely to be compromised, at ZEN-SMILE-SPA, your dentist will offer you the option of a ceramic or porcelain onlay and inlay since porcelain is much stronger than the composite white filling. In this case, the dentist will take an impression of your tooth and have the inlay or onlay made at the laboratory.
When the inlay and onlay arrives back from the lab, the dentist will cement the filling as a whole with crown cement. Of course this requires 2 appointments instead of one and is more costly, however, one can expect an inlay or onlay to last over 20 years.In dentistry, porcelain inlays and onlays are a form of indirect restoration.Due to its tooth like colour, porcelain provides better aesthetic value for the patient.
This means they are made outside of the mouth as a single, solid piece, that fits the specific size and shape of the cavity. The restoration is then cemented in place in the mouth. This is an alternative to a direct restoration, made out of composite, amalgam or glass ionomer, that is built up within the mouth.
About Inlays and onlays, they are used in molars or premolars, when the tooth has experienced too much damage to support a basic filling, but not so much damage that a crown is necessary.
The key comparison between them is the amount and part of the tooth that they cover. An inlay will incorporate the pits and fissures of a tooth, mainly encompassing the chewing surface between the cusps. An onlay will involve one or more cusps being covered. If all cusps and the entire surface of the tooth is covered this is then known as a crown.