Dentists hate to disturb a healthy tooth — even a damaged tooth that still has plenty of life left in it. Preserving as much of an existing tooth as possible is always the goal. There are times when a tooth can be damaged beyond the ability of a traditional filling to repair it, but not damaged to the point where the expense and effort of a crown is called for. In cases like those, you may be advised to go with an inlay or an onlay.
Restorative & Cosmetic Dentistry
Made of either dental-grade porcelain or composite resin, inlays and onlays are similar to fillings except that they are pieces of material manufactured by a dental lab to very exact specifications and then placed into position by the dentist. An inlay fits within the cusps — or bumps — on the surface of a tooth. An onlay is a larger restoration that covers one or more cusps and extends over the biting surface. Sometimes inlays or onlays are requested for cosmetic reasons: unlike the material used in a standard filling, they can be precisely matched to the shade of your teeth, making the repair very difficult to notice.
Getting an inlay or onlay takes two office visits. At the first appointment, Dr. Daniel removes any decay or damaged material and shapes the area to accept the restoration. An impression is taken and sent to the dental lab, and a temporary filling is placed to protect the tooth. When the custom inlay or onlay returns from the lab, you come back for your second visit. The temporary is removed, the restoration is checked for fit and bite, and then permanently bonded in place. The result is a precise, durable repair that is indistinguishable from natural tooth structure.
Inlays and onlays require removing only the damaged portion of the tooth, preserving significantly more healthy enamel than a crown would require.
Lab-fabricated restorations are harder and more durable than direct composite fillings, making them better suited for larger repairs on back teeth that take heavy chewing forces.
Porcelain and tooth-colored composite inlays and onlays are matched precisely to your natural tooth shade, making them virtually invisible once placed.
An inlay or onlay is typically recommended when a tooth has decay or damage that is too large for a standard filling to repair effectively, but the remaining tooth structure is healthy enough that a full crown is not yet necessary. They are also a good option when an older, large amalgam filling needs to be replaced and the tooth can be restored more conservatively than a crown would allow. Patients looking to replace metal fillings for cosmetic reasons may also benefit from tooth-colored inlays or onlays. Dr. Daniel will assess your tooth at your exam and recommend the most conservative approach that will give you a durable, lasting result.
Why Choose Us
At Aria Dental of Annapolis, Dr. Nicholas Daniel and Dr. Lisa Daniel have built a practice around one simple belief: every patient deserves to feel like a person, not an appointment. From routine cleanings to full-mouth restorations, you get honest, thorough care from a team that knows your name.
Standard fillings are placed directly in the tooth in a single visit using composite resin that hardens in place. Inlays and onlays are fabricated in a dental lab from impressions of your tooth, providing a more precise fit and greater durability — especially for larger repairs. They typically last significantly longer than direct composite fillings.
An inlay fits within the bumps (cusps) on the chewing surface of a tooth. An onlay is larger and extends over one or more of those cusps. Both serve the same purpose of restoring a damaged tooth — the difference is simply the size and location of the area being repaired.
With proper care, porcelain inlays and onlays can last 20 to 30 years or longer. Composite resin restorations typically last 5 to 10 years. Regular cleanings, good oral hygiene, and avoiding habits like chewing ice or grinding your teeth all contribute to longevity.
Not at all. When made from tooth-colored porcelain or composite, inlays and onlays are precisely matched to the color of your tooth and are virtually undetectable once placed. Most patients — and even observers — cannot tell the difference from natural tooth structure.
The procedure is performed under local anesthesia, so you won't feel pain during treatment. You may experience some mild soreness or sensitivity for a few days after the appointment, which is normal and resolves quickly. Over-the-counter pain relievers are usually sufficient if needed.
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