Three-Quarter Crowns for Durable Restorations
In some cases, when a simple filling is not sufficient to repair a damaged tooth, an inlay or onlay may be used instead. Inlays and onlays, also referred to as three-quarter or partial crowns, are indirect restorations. They are fabricated outside of the mouth (in a dental lab) and then fitted to the tooth (at a second appointment). They are more durable than composite fillings, yet less invasive than a full crown.
- Inlays fit over one or more cusps on a tooth’s biting surface.
- Onlays fit over one or more tooth cusps, then down the side of a tooth.
Creating Inlays and Onlays
To design a custom inlay or onlay, we will first prepare your damaged tooth, then take intraoral photographs and impressions. Along with Dr. Sohl’s instructions, this data will be submitted to our dental lab. There, using state-of-the-art technology and high-quality materials, a certified dental lab technician will fabricate your restoration.
Inlays and onlays are often made completely of ceramic, but sometimes a metal base or zirconia make for a more durable restoration. Dr. Sohl will consider your affected tooth, as well as its location in your mouth, when making his recommendation for your restoration.