Inlays and Onlays

Unlike a filling, inlays and onlays are created outside the mouth from an impression taken of the tooth. An inlay is cemented within the cavity and an onlay covers more of the outside of the tooth. An onlay is used when the repair needs to include one or more cusps, or fully cover the biting surface. They are made from hard wearing materials, including porcelain, composite resin or gold.

Why have an inlay or onlay?

Inlays and onlays are very stable restorations that fit a damaged tooth perfectly, to provide superior protection. They are able to withstand stronger chewing forces than directly placed fillings. Having an inlay or onlay preserves more of the healthy tooth than a crown would.

What does the treatment involve?

Any areas of decay or old fillings are removed and the tooth is cleaned. We then take impressions (moulds) of the tooth, which are used by our dental laboratory to create your inlay or onlay. A temporary restoration is fitted so the prepared cavity can be protected while the inlay or onlay is being made. When ready, the inlay or onlay is checked for fit and comfort, and then glued in place with a strong dental adhesive.

Looking after your repaired tooth

When properly maintained, with effective cleaning and regular check-ups, inlays and onlays can last for years.

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