Ceramic Inlay & Onlay

When a tooth has more damage than a filling can handle, but not enough to need a full crown, a ceramic inlay or onlay offers a conservative middle ground — restoring strength and shape while preserving as much of your natural tooth as possible.

Inlay vs. onlay

An inlay fits neatly within the grooves on the chewing surface of a tooth, between the cusps. An onlay covers one or more of those cusps as well, for slightly more extensive damage. Both are custom-crafted from tooth-colored ceramic to blend seamlessly with your smile.

Why choose ceramic

  • Preserves more natural tooth structure than a full crown
  • Matches the color of your natural teeth — no visible metal or dark edges
  • Strong and durable, bonded directly to the tooth for a tight, lasting fit
  • Resists staining better than composite fillings over time

The process

Treatment typically takes two visits. At the first, we remove any decay or old restoration, take a precise impression of the prepared tooth, and place a temporary restoration while your custom inlay or onlay is fabricated. At the second visit, we check the fit and color, then bond it permanently in place with a strong resin cement.

Caring for your restoration

With regular brushing, flossing, and dental visits, a ceramic inlay or onlay can last many years, standing up well to everyday chewing and wear.

See our post-op care instructions for guidance on caring for your new restoration.

Content reviewed by Jamisen Kohlman, DMD — KoLa Family & Cosmetic Dentistry, Austin, TX.

Frequently asked questions

When too little healthy tooth remains for an onlay to anchor to — a crack that keeps spreading, decay undermining several walls, or a tooth that is already mostly filling material. At that point a crown’s full coverage is the stronger, longer-lasting choice, and we’ll tell you honestly which side of the line your tooth is on.
An inlay fits within the cusps on the chewing surface of a tooth, while an onlay extends over one or more cusps. Both are custom-milled restorations for damage too extensive for a filling but not requiring a full crown.
With good hygiene and regular checkups, ceramic restorations commonly last many years. They’re bonded to your tooth and resist staining well.
Many plans cover ceramic inlays and onlays at a level similar to other restorations, though it varies by plan. We verify your benefits and provide a clear estimate before treatment begins.

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