Portland Inlays And Onlays

Sleep Dentistry of Portland uses inlays and onlays as an advanced alternative to fillings or crowns.


Inlays and onlays offer stronger, more durable restoration and often require less alteration to the natural tooth so that the impact on your smile is minimized.


teeth on pink background

Using porcelain material will significantly increase the aesthetics of a tooth’s restoration. Porcelain inlays and onlays blend in to give you a beautiful smile that looks natural — and this worthwhile treatment is made to last.

The most appealing aspect of inlays and onlays is that they are substantially more durable than regular fillings and often last up to 3 or 4 times longer.

How Inlays and Onlays Work

A filling is molded during its placement, but inlays and onlays are precision-made in advance of their placement to perfectly fit your tooth’s contours.

Like a filling or crown, inlays and onlays reinforce the tooth’s existing structure, prevent further decay, and restore its function. They preserve more of a tooth’s healthy structure than other cavity and tooth decay treatments.


An inlay is placed in the bed of a tooth’s chewing (or occlusal) surface. It covers a relatively small area.

An onlay is an inlay that extends to one or more points (or cusps) of a tooth and thus is visible on one of its outer sides. An onlay covers more of the tooth’s surface than an inlay but far less area than a crown would.


fitting piece into tooth

Depending on your individual needs, inlays and onlays can be made from different materials. Gold is a solid choice, while porcelain and composite resins mimic teeth’s natural look.