Onlays and Inlays

A porcelain inlay or onlay is similar to a filling, but instead of being built up in your mouth, it is constructed indirectly from a model of your teeth. Making it outside the mouth means materials can be used that would not be possible in the mouth, making an inlay or onlay more durable. The inlay or onlay is then bonded securely to the damaged teeth.

An onlay or inlay is generally necessary when a pre-existing filling has failed. This is to fill what will be a larger cavity left behind. The primary goal is to salvage natural tooth structure. Protecting the remaining tooth structure and providing the necessary support helps avoid the need for a replacement crown.

There is a basic difference between porcelain onlays and inlays:

• An onlay is typically used when the cavity is shallow and broad, usually towards the exterior of the tooth
• An inlay is used on cavities inside the tooth and are inserted into the centre of the tooth and bonded to it

By following good oral hygiene practices, a proper diet, and regular dental visits you will preserve the life of your new onlay or inlay and help to prevent the need for a full dental crown in the future.

Each onlay and inlay is different based on the shape of your teeth. There are also different materials and ceramicists used for particular situations. We will discuss the options and costs with you during your first appointment.