When a tooth has a large cavity or a broken cusp, a standard filling is sometimes not enough. A full crown can be more than the tooth actually needs. Inlays and onlays sit in between, offering a durable repair that preserves more of the natural tooth.

An inlay fits within the biting surface of the tooth, while an onlay extends to cover one or more of its cusps. Both are made outside the mouth and then bonded into place, usually from ceramic or a similar material that matches the tooth color and resists wear.

Digital design has made these restorations much more practical. After the damaged area is prepared, a scan captures its exact shape. Software then designs a piece that fits precisely into that space, matching the contours of the surrounding tooth and the way it meets the opposing teeth.

This is a strong example of what modern 3d dental design can do. The margins, where the restoration meets the tooth, are critical, since any gap can let bacteria in. On screen, a designer can inspect those margins closely and refine them before the piece is made.

The advantages for patients are clear. More natural tooth structure is kept, the repair blends in visually, and the process is often completed with fewer appointments than older methods required.

Whether an inlay, an onlay, or a crown is the right choice depends on how much healthy tooth remains. Your dentist can explain the options for your specific case and help you weigh durability, appearance, and cost.